Republican Sen. Susan Collins has out-raised a liberal crowdfunding effort to unseat her, thanks to out-of-state donors.
Collins' federal campaign finance reports filed Friday show she's raised $4 million for her 2020 re-election campaign. She's raised more than her three last re-election races combined and reports a $3.8 million war chest through March.
She's raised less than 1% of her funds this year from donors who say they're from Maine.
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Collins' biggest reported donors include political action committees tied to Republicans, insurance company UNUM and consulting firm Deloitte.
Progressives have raised $3.5 million for a candidate to unseat Collins after she cast a key vote to confirm Supreme Court Justice Brett Kavanaugh. No Democrats have formally announced they're running against Collins, who typically wins re-election by wide margins.