The Cook Political Report shifted four U.S. Senate races toward Democrats on April 13, reflecting what the nonpartisan forecaster called an "increasingly sour national environment for Republicans."
The Cook Political Report, which provides analysis of elections and political trends, said that all four moves favored Democrats—the largest one-sided batch of Senate rating changes this cycle. But the GOP remains favored to hold the upper chamber heading into the 2026 midterms.
Cook Political Report analyst Jessica Taylor wrote on X that the forecaster sees "the likeliest outcome is a 1 to 3 seat Democratic pickup—just short of 4 they need" to reclaim the majority.
North Carolina and Georgia both moved from Toss Up to Lean Democrat. Ohio shifted from Lean Republican to Toss Up. Nebraska moved from Solid Republican to Likely Republican.
Democrats need a net gain of four seats to win back control of the Senate. Even if they sweep every race currently rated Toss Up or Lean Democrat, they would still come up one seat short of a majority.
In North Carolina, former two-term Democratic Gov. Roy Cooper is running for the open seat against former Republican National Committee Chairman Michael Whatley. In Georgia, Democratic Sen. Jon Ossoff is seeking a second term after winning a 2021 runoff that helped hand Democrats unified control of Washington for a brief period.
Ohio's race moved into the Toss Up column with former Democratic Sen. Sherrod Brown challenging Incumbent Republican Sen. Jon Husted.
In Nebraska, independent Dan Osborn is again challenging a Republican incumbent—this time Sen. Pete Ricketts—pushing the seat from Solid Republican to the edge of the competitive map.
In 2024, Osborn overperformed then-Vice President Kamala Harris in the state, losing to Republican Deb Fischer by roughly seven points while Trump carried Nebraska by more than 20. Osborn has said he would not caucus with either party if elected, according to the Nebraska Enquirer, meaning a win would not hand Democrats a seat but would leave Republicans with one fewer.
The Cook Political Report's current Senate map shows 34 Democratic-held seats not up for reelection and 31 Republican-held seats not up. Of the 35 seats on the November ballot, the forecaster rates nine as Solid Democrat, one as Likely Democrat, three as Lean Democrat, and three as Toss Up. One seat is rated Lean Republican, three are Likely Republican, and 15 are Solid Republican.
The Democratic Senatorial Campaign Committee said the shifts validate a strategy it has pursued since early 2025, when Democrats had just two clear offensive targets in Maine and North Carolina before expanding the battleground map with what it called "star recruits in marquee races."
"Across the map, Democrats have created a clear path to taking back the Senate majority by recruiting all-star candidates, building strong general-election infrastructure, and capitalizing on a Republican field defined by weak and deeply flawed nominees,” the committee said about the report.
The National Republican Senatorial Committee (NRSC) did not return a request for comment from The Epoch Times by publication time.
In a statement to Newsweek, the NRSC said, “The 2026 Senate battleground is going to come down to a small number of very competitive races in true swing states that no one can take for granted, but Republicans remain favored to hold the Senate Majority and the NRSC has built our strategy, candidate recruitment, and resource deployment around winning exactly that kind of map."