Which super PACs did Stephen Mandel fund in 2026?

Senate Majority PAC ($3.0M), House Majority PAC ($1.7M), Lone Star Rising PAC ($500K), North Star Dawn PAC ($300K), DSCC ($89K).

Which candidates did Stephen Mandel's money end up backing or attacking in 2026?

against Ken Paxton (Texas Senate, about $353K, won); for Angie Craig (Minnesota Senate, about $150K, unknown); against Peggy Flanagan (Minnesota Senate, about $130K, lost). Amounts are the donor's share of each group's spending.

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Donor

Stephen Mandel

Individual

President, Lone Pine Capital · Connecticut

17 reported gifts; 8 recipient groups listed, as reported to the FEC by the groups that received them.

Winner

Stephen Mandel gave $5.8M to super PACs and other outside groups in the 2026 federal elections, and 100% 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, 91% were on the winning side ($1.7M won, $167K lost, with $325K in races still being counted). $225K had no matched result and is excluded.

Gave to outside spenders

$5.8M

100% of it helped Democrats

Winning share of scored dollars

91%

$1.9M scored (33% of gifts)

Spent on the losing side

$167K

$325K still being counted

Not allocated or result unknown

$3.5M

$3.3M not allocated to tracked outside spending; $225K has no matched result. Neither is cash on hand.

Where the cheques went

A person writing cheques 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 cheque 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 $3.0M not allocated to tracked outside spending	$3.0M	$0 / $0
House Majority PAC $94K not allocated to tracked outside spending	$1.7M	$1.3M / $8K
Lone Star Rising PAC	$500K	$449K / $0
North Star Dawn PAC $20K not allocated to tracked outside spending	$300K	$0 / $130K
DSCC $89K not allocated to tracked outside spending	$89K	$0 / $0
DCCC $89K not allocated to tracked outside spending	$89K	$0 / $0
Advance Progress $3K not allocated to tracked outside spending	$50K	$0 / $28K
Votevets $20K not allocated to tracked outside spending	$50K	$23K / $592

The trail

What the money bought

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

Candidate	Race	Spending	Their share	Paid off?
Ken Paxton	Texas Senate	Attacking	$353K	✓ Yes
Angie Craig	Minnesota Senate (primary)	Supporting	$150K	Unknown
Peggy Flanagan	Minnesota Senate (primary)	Attacking	$130K	✗ No
Scott Singer	Florida 25th District	Attacking	$95K	✓ Yes
Tom Barrett	Michigan 7th District	Attacking	$77K	✓ Yes
Casey Askar	Florida 22nd District	Attacking	$70K	✓ Yes
Laurie Buckhout	North Carolina 1st District	Attacking	$63K	✓ Yes
Mike Bouchard Jr.	Michigan 10th District	Attacking	$62K	✓ Yes
Eric Flores	Texas 34th District	Attacking	$55K	✓ Yes
James Talarico	Texas Senate	Supporting	$51K	✓ Yes
Paul LePage	Maine 2nd District	Attacking	$51K	Counting
Jasmine Crockett	Texas Senate (primary)	Attacking	$51K	Unknown

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

Questions people ask

How much did Stephen Mandel spend on the 2026 elections, and did it win?: Stephen Mandel gave $5.8M to super PACs and other outside groups in the 2026 federal elections, and 100% 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, 91% were on the winning side ($1.7M won, $167K lost, with $325K in races still being counted). $225K had no matched result and is excluded.
Which super PACs did Stephen Mandel fund in 2026?: Senate Majority PAC ($3.0M), House Majority PAC ($1.7M), Lone Star Rising PAC ($500K), North Star Dawn PAC ($300K), DSCC ($89K).
Which candidates did Stephen Mandel's money end up backing or attacking in 2026?: against Ken Paxton (Texas Senate, about $353K, won); for Angie Craig (Minnesota Senate, about $150K, unknown); against Peggy Flanagan (Minnesota Senate, about $130K, lost). Amounts are the donor's share of each group's spending.