While the battle rages in the Republican-controlled House over an upcoming vote on releasing the notorious Jeffrey Epstein files, multiple Republican senators who are facing re-election in 2026 are about to find they will also have to step up and tell the voters where they stand. And that could be a major problem for some, former Sen. Claire McCaskill (D-MO) wrote for MSNBC. With the Donald Trump White House working behind the scenes to undercut the Epstein file release, a Republican senator in a tight race could risk the president endorsing their primary opponent in retribution. According to McCaskill, it is about to get “really interesting” for a handful of Republican lawmakers. “We now have some senators who are facing real opposition next year.