Follow the Donor: How Tim Mellon Wrote the Largest Single Check of the 2024 Presidential Race

Timothy Mellon lives in Wyoming. He is the 82-year-old grandson of Andrew Mellon, the Treasury Secretary under Harding, Coolidge, and Hoover. He is not on cable television. He does not run a company anyone has heard of. In 2024 he gave $197,049,100 to federal political committees — the second-largest disclosed individual-donor total of the cycle, behind only Elon Musk — across 32 transactions to 15 committees.

The entire 2024 Mellon portfolio, top five committees

Source: stg_contributions_keyed, canonical_name = 'MELLON, TIMOTHY', cycle 2024.

The $150,000,000 check to Make America Great Again Inc. is the largest single-donor commitment to a pro-Trump super PAC on the FEC record in 2024. It was delivered in seven tranches. MAGA Inc. is the primary outside-spending vehicle for Donald Trump's 2024 campaign; Mellon's giving accounts for a substantial share of its total intake.

The $25,000,000 to MAHA PAC funded Robert F. Kennedy Jr.'s independent presidential campaign — which ended in August 2024 with Kennedy's endorsement of Trump.

One donor, one candidate, one race

Strip out the non-presidential giving — CLF ($15M, House Republican leadership), Sentinel ($6M, pro-Republican Senate), Fair Courts America ($1M, judicial campaigns) — and the picture simplifies sharply. Mellon's presidential-cycle giving in 2024:

$175,003,300 from one donor, directed at a single presidential outcome, through exactly two committees.

The multi-cycle pattern

Mellon did not emerge in 2024. His federal giving has escalated across every cycle we track:

From sub-$50,000 in 2016 to nearly $200 million in 2024 — a 5,000-fold increase in eight years. The growth was not driven by a change in wealth. It was driven by the legal collapse of contribution limits for super PACs after Citizens United and subsequent rulings, a ceiling that Mellon is personally testing.

What the number means

Total disclosed 2024 cycle giving in our warehouse, across all individual donors, has Elon Musk at $213.1M in first place. Mellon is second at $197.0M. Third is Richard and Elizabeth Uihlein at $144.1M. Fourth is the Adelson household at $143.9M.

Four individuals — Musk, Mellon, the Uihleins, the Adelsons — combined to give $698,177,577 in 2024. That is four checkbooks out of roughly 160 million registered voters.

Mellon's check is not the largest in absolute terms; Musk's is. But Mellon's is the most concentrated. Musk's giving fanned out across multiple committees and Senate races. Mellon wrote essentially two checks: one to elect Trump, one to help elect his chosen running-mate insurance policy. No other donor in the top twenty showed that level of monothematic focus on a single presidential outcome.

The Lessig read

The argument in Republic, Lost is not that wealthy people shouldn't participate in politics. It is that when one private citizen can unilaterally fund a meaningful share of a presidential campaign's outside spending, the candidate becomes responsive not to the coalition but to the check. That proposition is hard to dispute on the Mellon record. A candidate who receives a $150 million commitment from one donor cannot, as a practical matter, pretend the donor is one voice among many.

The data does not tell us what Tim Mellon asked for in return, if anything. The data does tell us what he paid, and to whom.

-- Mellon 2024 giving, by recipient committee
SELECT c.cmte_nm, SUM(x.transaction_amt) amt, COUNT(*) n
FROM `goodvote-466412.fec_staging_fec_staging.stg_contributions_keyed` x
JOIN `goodvote-466412.fec_staging_fec_staging.stg_committees` c USING(cmte_id)
WHERE x.canonical_name = 'MELLON, TIMOTHY' AND x.cycle = 2024
GROUP BY c.cmte_nm ORDER BY amt DESC;

-- Mellon totals by cycle
SELECT cycle, SUM(transaction_amt) amt
FROM `goodvote-466412.fec_staging_fec_staging.stg_contributions_keyed`
WHERE canonical_name = 'MELLON, TIMOTHY'
GROUP BY cycle ORDER BY cycle;

-- 2024 top individual donors (rank reference)
SELECT canonical_name, SUM(transaction_amt) amt
FROM `goodvote-466412.fec_staging_fec_staging.stg_contributions_keyed`
WHERE cycle = 2024 AND canonical_name IS NOT NULL
GROUP BY canonical_name ORDER BY amt DESC LIMIT 10;