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Sean Casten

D
U.S. Representative · Illinois-6 · 116th-119th, 7 years 8 months
Overview of the Representative's office, activities, and communications.

About

Casten, Sean Thomas A Representative from Illinois; born in Dublin, Ireland, November 23, 1971; graduated from Woodlands High School, Hartsdale, NY, 1989; B.A., Middlebury College, Middlebury, Vt., 1993; M.S., Dartmouth College, Hanover, N.H., 1998; M.E.M., Dartmouth College, Hanover, N.H., 1998; businessman; scientist; consultant; elected as a Democrat to the One Hundred Sixteenth and to the three succeeding Congresses (January 3, 2019-present).

Official Biography · U.S. Congress.
Years served
7
Bills introduced
46
Enacted
0
Cosponsored
342
Committees
6

Performance & Participation

Votes CastTop 25%
99% — Voted in 641 of 645 roll call votes this congress.
Avg 97% · Most: 100% · Least: 18%
Vote IndependenceMiddle 50%
1.0% — Voted against their own party majority 6 of 603 times.
Avg 2.1% · Most independent: 23.7% · Most party-line: 0.0%
Cosponsors AttractedTop 25%
648 — Attracted 648 cosponsors across 46 bills.
Avg 299 · Most: 1,868 · Least: 0
Cosponsors Attracted Cross-AisleMiddle 50%
34 — Attracted 34 cosponsors across the aisle.
Avg 59 · Most: 1,291 · Least: 0
Cosponsorships GivenMiddle 50%
342 — 342 bills cosponsored.
Avg 304 · Most: 1,768 · Least: 3
Cosponsorships Given Cross-AisleMiddle 50%
39 — 39 bills cosponsored across the aisle.
Avg 59 · Most: 803 · Least: 0
Social Media ToneiBottom 25%
NegativePositive
Avg +0.69 · Most: +0.94 · Least: +0.33
Press Release ToneiBottom 25%
NegativePositive
Avg +0.37 · Most: +0.90 · Least: +0.03
Palos 2026 Voter Guide: Everything You Need To Know
Patch · Oct 12, 2026
States Hold Retail Electricity Rate Power But Congress Eyes Limits
Legis1 · Oct 9, 2026
House Transportation Panel Advances Bills on Drones, Aviation Safety
Legis1 · Sep 24, 2026
Credit Data Access Rules Scheduled for House Vote
Legis1 · Jun 26, 2026
Healthcare Fraud: Billions Lost, Lives at Stake
Legis1 · Jun 23, 2026
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On the ballot Nov 3, 2026
Illinois's 6th U.S. House District
View the Race →Candidate Page →
District
View Office Details →
2026 Campaign Finance
$2.1M
Raised
63%
Individual
34%
PAC
—
Small $
5,269
Donors
Individual 63%PAC 34%Other 2%
Top PAC Donors
AMERICAN INSTITUTE OF CERTIFIED PUBLIC ACCOUNTANTS POLITICAL ACTION COMMITTEE$10K
BMO FINANCIAL CORP GOOD GOVERNANCE FUND: FEDERAL (BMO PAC)$10K
CME GROUP INC. PAC$10K
ERNST & YOUNG POLITICAL ACTION COMMITTEE$10K
MACHINISTS NON PARTISAN POLITICAL LEAGUE OF THE INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS$10K
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Data sourced from official congressional records, CRS, and FEC filings. AllCiv Score methodology available at allciv.com/methodology.