Which super PACs did William Harris fund in 2026?

Senate Majority PAC ($625K), Advance Progress ($400K), Leaders We Deserve ($100K), Right for Alaska ($100K), Ab PAC ($100K).

Which candidates did William Harris's money end up backing or attacking in 2026?

against Ed Markey (Massachusetts Senate, about $223K, lost); for Seth Moulton (Massachusetts Senate, about $152K, unknown); against Ken Paxton (Texas Senate, about $71K, won). Amounts are the donor's share of each group's spending.

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Donor

William Harris

Individual

Retired, Evergreen Money · Massachusetts

282 reported gifts; 20 recipient groups listed, as reported to the FEC by the groups that received them.

Mixed results

William Harris gave $1.6M to super PACs and other outside groups in the 2026 federal elections, and 93% of it helped Democrats (FEC filings with varying coverage dates; the most common larger-campaign cutoff is Oct 14, 2026). Among dollars with a matched election-stage result, 49% were on the winning side ($261K won, $277K lost, with $8K in races still being counted). $205K had no matched result and is excluded.

Gave to outside spenders

$1.6M

93% of it helped Democrats

Winning share of scored dollars

49%

$538K scored (34% of gifts)

Spent on the losing side

$277K

$8K still being counted

Not allocated or result unknown

$1.0M

$817K not allocated to tracked outside spending; $205K has no matched result. Neither is cash on hand.

Where the checks went

A person writing checks from their own fortune. Each gift is split the way the group that received it split its spending between winners and losers, so a $10M check to a group that spent 80% on losers counts as $8M on the losing side.

✓ Backed the winner or attacked the loser ✗ Backed the loser or attacked the winner Race not called yet Result not matched

Group	Gave	Won / lost
Senate Majority PAC $625K not allocated to tracked outside spending	$625K	$0 / $0
Advance Progress $25K not allocated to tracked outside spending	$400K	$0 / $223K
Leaders We Deserve $84K not allocated to tracked outside spending	$100K	$6K / $1K
Right for Alaska $923 not allocated to tracked outside spending	$100K	$29K / $48K
Ab PAC $48K not allocated to tracked outside spending	$100K	$41K / $4K
Lone Star Rising PAC	$100K	$90K / $0
Stronger Together Pa $18K not allocated to tracked outside spending	$75K	$57K / $0
Illinois Future PAC $2K not allocated to tracked outside spending	$50K	$35K / $0
DSCC $5K not allocated to tracked outside spending	$5K	$0 / $0
Congressional Progressive Caucus PAC $3K not allocated to tracked outside spending	$5K	$937 / $0
Giffords PAC $1K not allocated to tracked outside spending	$2K	$1K / $0
NRSC $2K not allocated to tracked outside spending	$2K	$0 / $0
Paf $932 not allocated to tracked outside spending	$1K	$338 / $0
DCCC $1K not allocated to tracked outside spending	$1K	$0 / $0
314 Action Fund $249 not allocated to tracked outside spending	$750	$280 / $19
House Majority PAC $12 not allocated to tracked outside spending	$212	$176 / $1
Progressive Turnout Project $70 not allocated to tracked outside spending	$100	$26 / $2
Votevets $20 not allocated to tracked outside spending	$50	$25 / $1
Edf Action Votes $9 not allocated to tracked outside spending	$50	$35 / $5
Crush Maga PAC $11 not allocated to tracked outside spending	$25	$0 / $8

The trail

What the money bought

The candidates William Harris's money was spent for or against, pro-rated by William Harris's share of each group's funding.

Candidate	Race	Spending	Their share	Paid off?
Ed Markey	Massachusetts Senate (primary)	Attacking	$223K	✗ No
Seth Moulton	Massachusetts Senate (primary)	Supporting	$152K	Unknown
Ken Paxton	Texas Senate	Attacking	$71K	✓ Yes
Bob Brooks	Pennsylvania 7th District (primary)	Supporting	$57K	✓ Yes
Dan J. Sullivan	Alaska Senate (primary)	Attacking	$49K	✗ No
Juliana Stratton	Illinois Senate (primary)	Supporting	$35K	✓ Yes
Gerald Heikes	Alaska Senate (primary)	Supporting	$29K	✓ Yes
Earl Southworth	Alaska Senate (primary)	Supporting	$21K	Unknown
James Talarico	Texas Senate	Supporting	$15K	✓ Yes
S Kriishnamoorthi	Illinois Senate (primary)	Attacking	$13K	Unknown
Jasmine Crockett	Texas Senate (primary)	Attacking	$10K	Unknown
James Talarico	Texas Senate (primary)	Supporting	$9K	✓ Yes

Individual as classified from the FEC entity type and public reporting.

Questions people ask

How much did William Harris spend on the 2026 elections, and did it win?: William Harris gave $1.6M to super PACs and other outside groups in the 2026 federal elections, and 93% of it helped Democrats (FEC filings with varying coverage dates; the most common larger-campaign cutoff is Oct 14, 2026). Among dollars with a matched election-stage result, 49% were on the winning side ($261K won, $277K lost, with $8K in races still being counted). $205K had no matched result and is excluded.
Which super PACs did William Harris fund in 2026?: Senate Majority PAC ($625K), Advance Progress ($400K), Leaders We Deserve ($100K), Right for Alaska ($100K), Ab PAC ($100K).
Which candidates did William Harris's money end up backing or attacking in 2026?: against Ed Markey (Massachusetts Senate, about $223K, lost); for Seth Moulton (Massachusetts Senate, about $152K, unknown); against Ken Paxton (Texas Senate, about $71K, won). Amounts are the donor's share of each group's spending.