Show Us The Money

William F. Gates Jr. (D-MA) is running for the U.S. Senate seat in the 2026 primary. But so far, his campaign has left no financial footprint in federal records.

His principal campaign committee, William Francis Gates for Senate, has filed no fundraising reports in the available data.

Gates is not alone in the race. Massachusetts campaign finance 2026 filings show a crowded field of candidates across the state, with more than $34 million raised by 37 candidates combined. Gates's committee accounts for none of that total.

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Candidate Rankings

Among the 37 Massachusetts federal candidates with FEC filings, Gates does not appear in the fundraising rankings because his committee has reported no activity.

The top three fundraisers in the state are:

1. Seth Moulton (D): $4,255,536 in total receipts, $3,331,585 cash on hand. Seth Moulton fundraising leads the state field.
2. Ed Markey (D, incumbent): $3,804,689 in total receipts, $2,541,376 cash on hand. Ed Markey campaign funds rank second overall.
3. Daniel Arrigg Koh (D): $3,515,780 in total receipts, $3,011,471 cash on hand.

One notable outlier: Rep. Jake Auchincloss ranks fifth in total receipts at $2,915,614 but leads all Massachusetts candidates in cash on hand at nearly $7 million.

Democrats dominate MA congressional donations in the 2026 cycle. The party's 27 candidates have raised a combined $32.6 million. The state's five Republican candidates have raised $1.8 million combined. Independent and third-party candidates account for roughly $151,000.

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Incumbents vs. Challengers

Incumbents are outpacing challengers across the board in Massachusetts 2026 election spending data.

The top incumbent fundraisers (Moulton, Markey, Clark, Auchincloss, Neal, Trahan, Pressley, Lynch, Keating, and McGovern) collectively hold far more cash on hand than the challenger field. Auchincloss alone holds nearly $7 million, more than most challengers have raised in total.

Challengers and open-seat candidates are raising money, but the gap is wide. Open-seat candidate Daniel Koh is the strongest non-incumbent at $3.5 million raised, putting him in the top three statewide. But most challengers in the data trail well behind, with many reporting under $200,000 in total receipts.

Gates, as a challenger with no reported financial activity, sits outside these comparisons entirely for now.

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*Source: Federal Election Commission (FEC), data current as of March 31, 2026.*

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