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.
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.