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Megadonor
John K. Mr. Castle
Merchant Banker · Castle Harlan Inc · Palm Beach, FL
· Strong Republican
Total Contributions
$1.1M
157 contributions
Megadonor (Strong Republican). $1,053,718 total across 45 committees over 4 election cycles. Largest recipient: Nrcc ($371,426). $277,185 to PACs/Super PACs. $139,207 directly to candidates.
🏆 Electoral Scoreboard
Below average: 24 wins, 26 losses (48% success rate) across decided races. Outcomes attributed via PAC IE targeting are approximate — the donor funds the PAC, not specific races.
Paxton
TX
Senate
2026
$30K
via Texans For A Conserva
Pending
Cornyn
TX
Senate
2026
$30K
via Texans For A Conserva
Pending
Hunt
TX
Senate
2026
$30K
via Texans For A Conserva
Pending
Cotton
AR
Senate
2026
$27K
via America One
Pending
Ossoff
GA
Senate
2026
$27K
via America One
Pending
President
2024
$30K
Direct
Pending
REP Senate races
—
Senate
2024
$11K
via Republican Majority F
12W-14L
REP Senate races
—
Senate
2022
$11K
via Republican Majority F
12W-12L
President
2020
$30K
Direct
Pending
📋 Committee Breakdown
Party — Qualified
$371K
54
2020, 2022, 2024, 2026
Party — Qualified
$193K
7
2022, 2024
Party — Qualified
$73K
2
2022
PAC — Nonconnected
$60K
2
2024, 2026
PAC — Nonconnected
$45K
2
2026
Senate Campaign
$30K
7
2020, 2022, 2024, 2026
PAC — Nonconnected
$25K
1
2020
Senate Campaign
$14K
2
2026
Senate Campaign
$12K
3
2022
PAC — Qualified Nonc
$11K
3
2022, 2024, 2026
PAC — Nonconnected
$11K
1
2020
Senate Campaign
$10K
2
2026
PAC — Qualified Nonc
$10K
2
2020, 2024
House Campaign
$10K
3
2022, 2024
House Campaign
$9K
4
2026
PAC — Nonconnected
$7K
1
2026
Senate Campaign
$7K
2
2024
Senate Campaign
$6K
4
2020, 2026
PAC — Nonconnected
$6K
1
2022
PAC — Nonconnected
$6K
1
2020
House Campaign
$6K
2
2020
Senate Campaign
$6K
2
2020
PAC — Qualified Nonc
$5K
1
2026