70% of the itemized money from individuals in the 2026 cycle came from donors with an address in Delaware. Ranks 629th of 714, where 1st is the highest share. 127 itemized donors.
Only donors who give more than $200 are reported with an address, so this is the share of that itemized money from donors living in Delaware, ranked among State Senate Democrats. Small gifts are not counted either way. Candidates running statewide or for federal office often draw more money from out of state.
At a glance
6 measures against State Senate Democrats. 89% of the 66 bills Mantzavinos sponsored got out of committee, in the top quarter of the Delaware Senate. Mantzavinos missed 3.9% of 1,031 roll calls, attendance in the bottom half of the Delaware Senate (average 95.8%).
The measures on which Mantzavinos sits furthest from the middle of State Senate Democrats, each against the same group, with the CSIP score when there is one. Every number is explained in its own section below.
From Delaware, 2026
Of itemized individual dollars · ranks 629th of 714 State Senate Democrats
Out of committee
Delaware Senate average 82% · ranks 5th of 21
Attendance
Delaware Senate average 95.8% · ranks 13th of 21 · 1,031 roll calls
Itemized, 2026
State Senate Democrats’ median $55.5K · ranks 290th of 746
Party unity
Delaware Senate average 97.0% · ranks 12th of 21 · 1 votes against the majority of Delaware Senate Democrats
CSIP ideology
More liberal than 51% of State Senate Democrats · ± 0.06
Peer group: State Senate Democrats. Rank 1 is the highest value in the group; the thick bar is Mantzavinos, the thin grey bar the peer average. The headline is the measure on which Mantzavinos is most unusual among peers (Methods, §08).
What Mantzavinos says
No statements for the DE 2025–26 session.No classified statements (posts, press releases, newsletters, floor speeches) in this time window.
Policy
No policy statements for the DE 2025–26 session.No classified statements (posts, press releases, newsletters, floor speeches) in this time window.
Ideology
Mantzavinos sits at −0.66 on the CSIP scale, left of 0, more liberal than 51% of State Senate Democrats. Approximate range −0.72 to −0.60, which understates the uncertainty; from 474 donors and 351 roll calls.
CSIP, the lab’s Common-Space Ideal Point, places every official, federal and state, on one left–right scale, estimated from roll-call votes, who gives money to whom, and the text of statements. Negative is left of 0, positive right of it; 0 is the centre of the scale, not a definition of “moderate”.
CSIP ideal point
Approximate range −0.72 to −0.60. From 474 donors and 351 roll calls. Run 2026-10-25T215945. Blue is left of 0, red right of 0.
The outlined dot is Mantzavinos, coloured by its side of 0 (blue left, red right, deeper further out); the bar through it is the approximate range (±1.96 standard errors), which understates the uncertainty; the grey ticks below are the medians of Mantzavinos’s groups. 0 is the centre of the scale, not “moderate” by definition.
What this means, and what it doesn’t
The score summarises how an official votes, who funds them and how they talk, relative to everyone else. It does not grade positions as good or bad, and two officials with the same score can differ on any single issue. The ± range is 1.96 standard errors, which understates the uncertainty: scores whose ranges overlap may not differ at all, and even scores whose ranges do not overlap may not differ.
Where Mantzavinos sits
Every official in each group, on the CSIP scale
Show the data
| Group | Officials | Median | Share left of Mantzavinos |
|---|---|---|---|
| State Senate Democrats | 825 | −0.7 | 49% |
| Delaware Senate | 21 | −0.7 | 43% |
| All State Senate | 1909 | +0.1 | 21% |
How to read the strips
Every small dot is one official on the same scale, coloured by its own score (blue left of 0, red right of 0, grey at 0, deeper further out) and spread up and down only to keep dots apart; where a group is crowded the dots overlap, and darker patches mean more officials. The large outlined dot is Mantzavinos in every row; the rule is each group’s median. The table under the figure gives the share of each group to the left of Mantzavinos.
Money
Mantzavinos reported $88.0K in the 2026 cycle, above the State Senate Democrats’ median of $55.5K. State filings report no small-donation total. 70% of itemized individual money came from Delaware.
Campaign money from state campaign-finance filings, as aggregates only; the lab never shows an individual donor. Campaigns must report by name every person who gives them more than $200 in a cycle (“itemized”); smaller gifts are reported only as one total (“unitemized”), so donor counts, donor states, employers and occupations describe itemized donors only. State filings report no small-gift total, so these figures add up itemized contributions only.
itemized in the 2026 cycle
From 127 itemized donors. State Senate Democrats’ median $55.5K.
Where the money came from
Each square is one percent of itemized contributions in the 2026 cycle.
- Individuals (itemized)64 squares$56.3K
- PACs and other committees36 squares$31.7K
Show the data
| Source | Amount | Share |
|---|---|---|
| Individuals (itemized) | $56.3K | 64.0% |
| PACs and other committees | $31.7K | 36.0% |
What this means, and what it doesn’t
Totals say how much a campaign took in, not how it was spent, and they rise sharply when a seat is up for election; compare cycles with that in mind.
Receipts by cycle
Itemized contributions, 2020 to 2026. The grey line is the State Senate Democrats’ median for 2026.
Show the data
| Item | Value |
|---|---|
| 2020 cycle | $135.6K |
| 2022 cycle | $116.7K |
| 2024 cycle | $21.4K |
| 2026 cycle | $88.0K |
Top donor states, 2026
Itemized contributions by donor state. 70% came from Delaware.
- Delaware$39.2K
- Pennsylvania$6,000
- Maryland$3,000
- New York$2,900
- District of Columbia$1,800
Small donations
State filings report no total for small gifts.
Not reported in state filings.
Where itemized donors live
Individuals who gave more than $200, by donor state
Show the data
| State | Value |
|---|---|
| Delaware | $39.2K |
| Pennsylvania | $6,000 |
| Maryland | $3,000 |
| New York | $2,900 |
| District of Columbia | $1,800 |
| New Jersey | $1,450 |
| California | $1,200 |
| Alabama | $300 |
| Minnesota | $250 |
| Virginia | $250 |
| Alaska | No data |
| Maine | No data |
| Vermont | No data |
| New Hampshire | No data |
| Washington | No data |
| Idaho | No data |
| Montana | No data |
| North Dakota | No data |
| Illinois | No data |
| Wisconsin | No data |
| Michigan | No data |
| Rhode Island | No data |
| Massachusetts | No data |
| Oregon | No data |
| Nevada | No data |
| Wyoming | No data |
| South Dakota | No data |
| Iowa | No data |
| Indiana | No data |
| Ohio | No data |
| Connecticut | No data |
| Utah | No data |
| Colorado | No data |
| Nebraska | No data |
| Missouri | No data |
| Kentucky | No data |
| West Virginia | No data |
| Arizona | No data |
| New Mexico | No data |
| Kansas | No data |
| Arkansas | No data |
| Tennessee | No data |
| North Carolina | No data |
| South Carolina | No data |
| Oklahoma | No data |
| Louisiana | No data |
| Mississippi | No data |
| Georgia | No data |
| Hawaii | No data |
| Texas | No data |
| Florida | No data |
itemized donors
People who gave more than $200
from Delaware
Of itemized individual dollars
How to read the map
Every state the same size. Darker states gave more itemized money; hatched states had no itemized donors; the outlined state is Delaware. Gifts of $200 or less carry no address and are left out.
Top donor occupations
Itemized, 2026 cycle.
No occupations reported.
Top committees
PAC and committee contributions, 2026 cycle.
- DELAWARE SENATE MAJORITY CAUCUS CAMPAIGN COMMITTEE$1,200
- DEMOCRATIC LEGISLATIVE CAMPAIGN COMMITTEE$1,200
- DEMOCRATS 2024$1,200
- LAWPAC OF DELAWARE$1,200
- TOMORROW PAC$1,200
Top employers
Itemized, 2026 cycle.
No employers reported.
Aggregates only. Individual donors are never named.
Votes
Mantzavinos voted with the majority of Delaware Senate Democrats on 98.6% of party-line votes and missed 3.9% of 1,031 roll calls. Delaware Senate on average: 97.0% party unity, 95.8% attendance. Across all roll calls, Mantzavinos voted against the majority of Delaware Senate Democrats 1 time.
1,031 roll calls Mantzavinos could vote on in the DE 2025–26 session, compared with Delaware Senate. Attendance is the share with a vote recorded. Party unity counts only party-line roll calls, where most Democrats and most Republicans voted on opposite sides, and is the share of those where Mantzavinos voted with the majority of Delaware Senate Democrats. The count of votes against that majority covers every roll call where the majority took a side.
votes against the majority of Delaware Senate Democrats
Party unity 98.6%, Delaware Senate average 97.0%, ranks 12th of 21. 1,031 roll calls in the DE 2025–26 session.
Attendance and party unity
The thick bar is Mantzavinos, the thin grey bar the Delaware Senate average. The scale runs from 80% to 100% to show the gap.
Show the data
| Row | Mantzavinos | Peers |
|---|---|---|
| Attendance | 96.1% | 95.8% |
| Party unity | 98.6% | 97.0% |
What this means, and what it doesn’t
A missed roll call has many causes, from illness to campaigning, so attendance says how often, not why. A vote against the majority can be on procedure as well as substance, and many fall on roll calls where both parties split; the key votes below show the ones that decided something.
Key votes
25 roll calls the lab flagged as key in the DE 2025–26 session
| Party split (yea–nay) | Why it’s key | |||||
|---|---|---|---|---|---|---|
| Jul 1, 2026 | HB 452 AN ACT TO AMEND TITLE 14 OF THE DELAWARE CODE RELATING TO THE DELAWARE INTERSCHOLASTIC ATHLETIC ASSOCIATION AND BACKGROUND CHECKS FOR CHILD-SERVING ENTITIES. Passage | Yea | With majority | pass | D 11–0 · R 2–3Democrats 11 yea, 0 nay; Republicans 2 yea, 3 nay | became law |
| Jul 1, 2026 | Yea | With majority | pass | D 15–0 · R 4–0Democrats 15 yea, 0 nay; Republicans 4 yea, 0 nay | became law | |
| Jul 1, 2026 | HB 145 AN ACT TO AMEND TITLE 11 OF THE DELAWARE CODE RELATING TO REVERSE LOCATION AND REVERSE KEYWORD SEARCHES AND COURT ORDERS. Passage | Did not vote | — | pass | D 11–0 · R 0–4Democrats 11 yea, 0 nay; Republicans 0 yea, 4 nay | became law |
| Jul 1, 2026 | SB 332 AN ACT TO AMEND TITLE 21 OF THE DELAWARE CODE RELATING TO SPECIAL VANITY LICENSE PLATES. Passage | Yea | With majority | pass | D 15–0 · R 5–0Democrats 15 yea, 0 nay; Republicans 5 yea, 0 nay | became law |
| Jul 1, 2026 | HB 355 AN ACT TO AMEND TITLE 10 OF THE DELAWARE CODE RELATING TO SEXUAL ASSAULT, HARASSMENT, AND DISCRIMINATION. Passage | Yea | With majority | pass | D 15–0 · R 5–0Democrats 15 yea, 0 nay; Republicans 5 yea, 0 nay | became law |
How key votes are chosen
Automatically: a final-passage or override vote where the measure became law, the margin was under 10%, at least 10% of either party voted against its majority, or the bill was among the 25 most mentioned in officials’ own statements. Up to 25 per window, most recent first; five are shown. Bars show yea on the left, nay on the right, per party.
Votes most often with
The colleagues who voted the same way as Mantzavinos most often
- Nicole PooreD944 shared votes100%
- Jack WalshD954 shared votes100%
- Trey ParadeeD939 shared votes100%
- Dave SokolaD981 shared votes100%
- Laura SturgeonD936 shared votes100%
Votes least often with
The colleagues who voted the same way as Mantzavinos least often
- Dave LawsonR826 shared votes92%
- Bryant RichardsonR968 shared votes92%
- Gerald HockerR946 shared votes92%
- Dave WilsonR961 shared votes93%
- Brian PettyjohnR964 shared votes93%
How to read the agreement lists
The share of roll calls both members voted on where they voted the same way, among colleagues sharing at least 50 such votes. High agreement with members of the other party is common on routine votes.
Full voting record
DE 2025–26 session, loads in batches
Legislation
Mantzavinos sponsored 66 bills in the DE 2025–26 session; 46 became law. Cosponsored 270 others. 89% of sponsored bills got out of committee (Delaware Senate average 82%; 5th of 21).
The bills Mantzavinos sponsored and cosponsored in the DE 2025–26 session, from the official bill records, and how far each got: introduced, referred to or acted on in committee, passed one chamber, passed both, became law. A bill counts at every stage it has reached, so the blocks only shrink to the right.
Bills by stage
Counts for the DE 2025–26 session
Show the data
| Role | Introduced | In committee | Passed one chamber | Passed both chambers | Became law |
|---|---|---|---|---|---|
| Sponsored | 66 | 65 | 59 | 55 | 46 |
| Cosponsored | 270 | 270 | 258 | 250 | 96 |
How to read the blocks
Ink blocks are bills Mantzavinos sponsored, ochre blocks bills Mantzavinos cosponsored; the figure above each block is the count. Most bills in any legislature never leave committee, so a short staircase is the norm.
of sponsored bills got out of committee
Delaware Senate average 82%. Ranks 5th of 21.
Cosponsorship partners
Colleagues who most often cosponsor with Mantzavinos, by number of shared bills in the DE 2025–26 session; the square shows their party.
- Dave Wilson139
- Russ Huxtable135
- Kyra Hoffner129
- Dave Sokola127
- Stephanie Hansen115
What this means, and what it doesn’t
The score is the share of sponsored bills that a committee reported out or a chamber passed, with at least 5 sponsored bills, ranked within the peer group. Members of the majority party and committee chairs move more bills, so the rank reflects position in the chamber as well as effort. Cosponsorship partners are the five colleagues who share the most of Mantzavinos’s bills; the toggle shows more.
Bill list
Sponsored and cosponsored, with status and policy area; five are shown, the toggle shows the rest
| HB 500 | A BOND AND CAPITAL IMPROVEMENTS ACT OF THE STATE OF DELAWARE AND CERTAIN OF ITS AUTHORITIES FOR THE FISCAL YEAR ENDING JUNE 30, 2027; AUTHORIZING THE ISSUANCE OF GENERAL OBLIGATION BONDS OF THE STATE; APPROPRIATING FUNDS FROM THE TRANSPORTATION TRUST FUND; AUTHORIZING THE ISSUANCE OF REVENUE BONDS O | Cosponsor | Jun 25, 2026 | Became law | Economics and Public Finance(model) | Line-Item Veto - See Governor's Advisory #46 Jul 6, 2026 |
| HB 453 | AN ACT TO AMEND TITLE 6 OF THE DELAWARE CODE RELATING TO CONSUMER PROTECTION AND SURVEILLANCE BASED PRICING DISCRIMINATION. | Sponsor | Jun 18, 2026 | Introduced | Commerce(model) | Amendment HA 2 to HS 1 - Introduced and Placed With Bill Jun 25, 2026 |
| SCR 219 | RECOGNIZING JUNE 19, 2026, AS "JUNETEENTH NATIONAL INDEPENDENCE DAY" IN THE STATE OF DELAWARE. | Cosponsor | Jun 18, 2026 | Passed both chambers | Unassigned | Passed In House by Voice Vote Jun 18, 2026 |
| SR 23 | PROCLAIMING THE WEEK OF OCTOBER 18-24, 2026, AS “INVISIBLE DISABILITIES WEEK”. | Cosponsor | Jun 18, 2026 | Passed one chamber | Unassigned | Passed By Senate. Votes: 21 YES Jun 18, 2026 |
| SR 25 | RECOGNIZING AUGUST 17, 2026, AS “NATIONAL NONPROFIT DAY” IN THE STATE OF DELAWARE. | Cosponsor | Jun 18, 2026 | Passed one chamber | Unassigned | Passed By Senate. Votes: 21 YES Jun 18, 2026 |
Online
A site that has not changed in 90 days. Mantzavinos’s official site had 1 page when last crawled on Oct 1, 2026.
The lab crawls Mantzavinos’s official and campaign websites (weekly for Congress, monthly for the states) and keeps every page’s text, so changes can be read later; it also records social accounts and describes the images Mantzavinos posts with a vision model.
Websites
Official site
senatedems.delaware.gov/members/senate-district-7/https://legis.delaware.gov/AssemblyMember/151/MantzavinosLast crawled Oct 1, 2026
1pages crawled
0changes in 90 days
- 7
pages crawled
8changes in 90 days
How to read the counts
“Pages crawled” is the size of the site at the last crawl; “changes in 90 days” counts pages whose text differed from the previous crawl. Sites change for many routine reasons, such as new press releases, so a high count is not by itself notable.
Social accounts
Images Mantzavinos posted
No images from Mantzavinos’s posts have been described.
About the descriptions
Written by a vision model and may be wrong. Open the post to see the original. Five are shown; the toggle shows the rest.
State floor speeches
74 turns, Mar 18, 2021 to Sep 29, 2026
Floor speeches
Transcribed from chamber video or captions by the lab. They are not classified for kinds of statement.
Methods and sources
How this page was made. Profile built Oct 28, 2026; site last built Oct 28, 2026. Every number on the page is computed from the sources listed here, by the same rules for every official; nothing is written by hand.
The headline
The headline is the measure on which Mantzavinos is most unusual among State Senate Democrats, chosen by one rule for every official of every party. The candidates are the rate of each kind of statement and of extreme labels, party unity, attendance, the small-donor share, the in-state share and total receipts of the latest cycle, the share of sponsored bills that got out of committee, talk-to-bills agreement, and the CSIP score’s place within the party group.
The builder ranks every measure within the same peer group the page compares it with, and writes each official’s percentile: the share of the group below the value, ties counting half, so 0.5 is the median and a value shared by many never ranks first. A measure’s score is how far that percentile sits from the median (0 in the middle, 0.5 at either end), and the highest score leads if it is above 0.25, outside the middle half of the group. Scores within 0.03 of each other are a tie, broken in this order: votes against the party majority, kinds of statement, ideology, roll calls missed, small donations, in-state money, legislation, agreement, extreme labels, receipts.
A measure counts only with at least 200 statements, 100 roll calls or 5 sponsored bills behind it and a peer group of at least 10. Two things never lead: high party unity or attendance, where most members sit, and a high rate of a kind of statement backed by fewer than 10 statements. When nothing qualifies, the headline is a neutral fact instead: statements classified, or years in office. The wording always names the direction (“in the bottom 5% of …”, “votes against the majority of …”).
Identifiers
- Profile id
- a42132e6-9070-44a4-81be-70797c4ea2bb
- Open States
- ocd-person/a42132e6-9070-44a4-81be-70797c4ea2bb
Bulk files with the same data for every official:
Freshness of this profile’s data
- What politicians sayOct 27, 20261 days agoMembers of Congress: tweets since 2017; press releases, newsletters and floor speeches since 2022. State legislators: tweets since May 2024. Governors: tweets since January 2025. Labels from an LLM classifier.
- Roll calls (state)Oct 21, 20267 days agoOpen States floor roll calls, 2019 on (none for AK and MO).
- Bills (state)Oct 28, 2026todayOpen States bills and sponsors, 2019 on; stages from roll calls.
- Campaign money (state)no dateState campaign-finance agencies, 2019 on; aggregates only.
- Ideology (CSIP)Oct 25, 20263 days agoCommon-Space Ideal Points (CSIP), current validated run.
- WebsitesOct 25, 20263 days agoWeekly crawls of federal sites since April 2026; monthly state crawls since June 2026.
- State floor speechesOct 21, 20267 days agoState floor speech turns (published transcripts and captions), 2020 on; not LLM-classified.
How the measures work
- What politicians say
- Every post, press release, newsletter and congressional floor speech is read by a language model and marked for personal attacks, policy criticism, policy discussion, bipartisanship and credit claiming. A statement can be in several. Rates are shares of statements in the window. The methods paper.
- Extreme labels
- A statement has an extreme label when it calls a politician, party or policy “far left”, “far right”, “MAGA”, “extreme”, “radical”, “woke”, “fascist” or “communist”. The target is who the label is aimed at.
- Policy areas and agreement
- Statements and bills share 25 Congressional Research Service policy areas (state bills are assigned by a language model). Agreement is 1 − Jensen–Shannon distance between the two distributions, shown with at least 20 policy statements and 5 bills.
- Ideology (CSIP)
- Common-Space Ideal Points place federal and state officials on one left–right scale, estimated jointly from roll calls, campaign contributions and the text of statements, with standard errors. Only a validated run is shown. The methods paper.
- Campaign money
- Campaigns report by name only donors who give more than $200 in a cycle; smaller gifts are reported as one total. Federal totals and the small-donor share come from the FEC’s financial summaries of each campaign committee. Donor counts, donor states, employers and occupations cover itemized donors only. State filings report no small-gift totals, so state figures are itemized only. The lab never publishes donor names.
- Votes and key votes
- Attendance, party unity and the count of votes against the majority of an official’s own party come from roll calls (Voteview for Congress, chamber records for the states). Key votes are final-passage or override votes that became law, were decided by under 10%, saw at least 10% of a party vote against its majority, or concerned one of the 25 bills most mentioned in officials’ statements.
- Peers and ranks
- Comparisons are with the same party, chamber and level (for example House Democrats); state legislators are compared within their state and chamber for votes. Every comparison names its group. Rank 1 is the highest value in the group; tied values share the average of their ranks, and the percentile is the share of the group below the value, ties counting half.
America’s Political Pulse · Polarization Research Lab