The top 10 Senate seats most likely to flip 5 weeks from Election Day

CNN — President Donald Trump’s nomination of Amy Coney Barrett to the Supreme Court over the weekend is likely to further nationalize the fight for control of the Senate, with Republicans looking to defend a majority that was very much at stake well before Justice Ruth Bader Ginsburg died. In Maine, another blue state where a Republican incumbent is facing a tough reelection, Democrat Sara Gideon is explicitly arguing that this election isn’t just about Sen. Susan Collins — who has said the Senate shouldn’t vote on a nominee before Election Day — it’s also about Majority Leader Mitch McConnell, whom the narrator in one of her recent spots says, is also on the ballot. If the Supreme Court vacancy does push voters deeper into their partisan corners, that could spell good news for North Carolina Sen. Thom Tillis, but bad news for Collins, who’s already alienated moderates and independents with her support for Justice Brett Kavanaugh in 2018 and isn’t likely to enamor herself with conservatives by saying a Trump nominee shouldn’t be confirmed before the election. But Jones isn’t running away from his party, most recently joining his fellow Senate Democrats in saying he’d oppose any Trump Supreme Court nominee before Election Day. Montana Incumbent: Republican Sen. Steve Daines Chip Somodevilla/Getty Images Montana moves up a spot on this list, meaning it’s more likely than the Georgia seat to flip partisan control in November.