One donor, one party: Musk's $366m and the Democrats' Senate gap

Elon Musk has become the biggest known donor of the 2026 midterm cycle, with about $366m in federal political giving, according to figures reported by The New York Times and set to appear in a federal filing on Thursday. More than $276m of that was disclosed as given since July alone.

The largest single share, $158m, went to the Senate Leadership Fund, the main super PAC backing Republican Senate candidates. More than $76m went to America PAC. Musk's 2025-26 giving has already surpassed the roughly $290m he spent during the 2024 election, despite saying last year he planned to spend "a lot less" on politics.

The $158m to the Senate Leadership Fund is one of the largest political donations in American history, and it is more than the Democrats raised from all of their donors that quarter for their efforts in the Senate. That comparison is the structural point: one individual's checkbook now rivals an entire party's quarterly Senate fundraising.

US Senator Bernie Sanders criticised the spending, saying: "Stop Musk, stop oligarchy."

Separately, Public Citizen tallied more than $210m in contributions to MAGA Inc. and other Trump-aligned super PACs from corporations that benefited from the Trump administration's cancellation of 212 federal enforcement actions involving 205 corporations.

What this means is not that any donation is illegal or that a quid pro quo is proven. It is that the scale and concentration of the money — $158m into a single super PAC aimed at determining which party controls the Senate — raises questions about the influence of individual mega-donors over legislative outcomes. It also shows how quickly political money can be deployed after a donor's earlier public pledge to scale back.

Open questions remain: which specific races or candidates the Senate Leadership Fund donation is targeting; whether Thursday's filing confirms the full $366m total and itemises all recipients; how Musk's total compares with overall Democratic and Republican fundraising for the cycle; and what, if anything, Musk expects in return.