They all do. Most obviously, there is the midterm election coming up. But also, as support for Trump wears away, more Republicans are willing to break with him.
So recently, Trump said that he wouldn't sign any legislation until his pet vote rigging (sorry election security) legislation was passed. Republicans joined Democrats to pass a housing bill, over Trump's objections.
Trump's nominees are also having a harder time getting through the confirmation process. At the beginning of his term, he rammed through several nominees by threatening to primary Republicans. Those included RFK, Jr. and Hegseth. Now, questionable nominees like Todd Blanche are struggling to make it through.