John O'Brien

Individual

Also gave $18K to joint fundraising committees. That isn't in the totals here, because those committees pass the money on to others.

This name appears on FEC filings from 39 states, so this page may combine different people who share it.

Total Contributed

$258K

Contributions

1,117

Recipients

188

Active Period

1999–2026

Donor Profile

Party Lean

D $120KR $57KIndependent $819NNE $145

Top States

DC$89K

TN$16K

IL$12K

PA$8K

MA$6K

Giving Trend

↓ 55%

2025–2026 vs 2023–2024

Employer

CONTEMPORARY HEALTHCARE

Summary

O'BRIEN, JOHN is an individual political donor based in CA. They have contributed $258K across 1,117 contributions to 188 recipients. Their average contribution is $231.369. Top recipients include DNC SERVICES CORP / DEMOCRATIC NATIONAL COMMITTEE, DCCC, INSTITUTE OF MAKERS OF EXPLOSIVES POLITICAL ACTION COMMITTEE. Their political giving spans from the 2000 to the 2026 election cycle, with peak giving of $41K in 2022.

Giving Pattern by Cycle

Contribution amounts per election cycle, colored by recipient party

All Recipients

Committees and candidates receiving contributions, all cycles

#	Name	Party	State	Total	Contributions
1	DNC SERVICES CORP / DEMOCRATIC NATIONAL COMMITTEE	Democratic	DC	$22,355	204
2	DCCC	Democratic	DC	$18,243	42
3	INSTITUTE OF MAKERS OF EXPLOSIVES POLITICAL ACTION COMMITTEE	—	DC	$16,000	8
4	CHUCK FLEISCHMANN FOR CONGRESS COMMITTEE, INC.	Republican	TN	$13,000	5
5	WASHINGTON GAS LIGHT COMPANY PAC	—	DC	$8,941	26
6	HARRIS FOR PRESIDENT	Democratic	PA	$7,957	66
7	CAPUANO FOR CONGRESS COMMITTEE	Democratic	MA	$6,150	9
8	EAGLE FORUM PAC	—	IL	$6,100	13
9	OBAMA FOR AMERICA	Democratic	IL	$5,950	11
10	ONDER FOR CONGRESS	Republican	MO	$4,600	2
11	DSCC	Democratic	DC	$4,257	17
12	NRSC	Republican	DC	$4,085	25
13	HILLARY FOR AMERICA	Democratic	NY	$4,002	14
14	HARRIS VICTORY FUND	—	DC	$3,702	42
15	HILLARY CLINTON FOR PRESIDENT	Democratic	DC	$3,300	5
16	FRY FOR CONGRESS	—	SC	$3,152	3
17	HMP	—	DC	$3,038	22
18	AMERICA'S CREDIT UNIONS PAC OF CREDIT UNION NATIONAL ASSOCIATION, INC.	—	DC	$2,855	15
19	FRIENDS OF SCOTT ANGELLE, LLC	Republican	LA	$2,700	1
20	WARNOCK FOR GEORGIA	Democratic	GA	$2,700	13
21	TED CRUZ FOR SENATE	Republican	TX	$2,700	1
22	RICHARD BURR COMMITTEE; THE	Republican	NC	$2,700	1
23	THE LINCOLN PROJECT	—	DC	$2,575	30
24	TEAM HAGERTY	Republican	TN	$2,500	1
25	COURTNEY FOR CONGRESS	—	—	$2,500	9

1–25 of 188

1 / 8

Source: FEC bulk data

John O'Brien — Individual Donor Profile | Poliscope