No political expert thinks the GOP will avoid a blowout in November 2026. Unless Trump suddenly manufactures some event to jerk the rudder.
Yet, I don't think more autocratic moves by him are going to endear him to the average voter though. The idea of invading the Falklands looks good on paper when you think Maggie Thatcher's UK is old and busted and you have Alexander Haig and the extreme anti-communists in the US administration telling you to keep on keeping on with unpopular measures against domestic opponents...turns out you made one move too many at the end of the day.