President Donald Trump spent the past week further angering many Republicans, a trend that could not only hinder his hopes of accomplishing his legislative agenda but may endanger his very future in the White House. Republicans, after all, could be seen as the main barrier between him and a fate he surely wants to avoid: impeachment.

Related: Trump impeachment could be demanded by powerful Congressional Black Caucus after meeting next week

While talk of impeaching Trump over various alleged offenses has been floated since before he even took office, the issue has thus far been a purely theoretical one, what with Republicans controlling both the House and Senate. But what if GOP members were to decide that they’d be better off without the unpredictable president?

Thus far, many Republicans have swallowed private distaste for the president while putting forward a largely unified public front, fueled by the unexpected, golden opportunity that comes with controlling both chambers of Congress as well as the White House. But cracks have increasingly been emerging in the uncomfortable alliance.

Following the president’s recriminations in the wake of the Senate Republicans’ dramatic failure to repeal and replace Obamacare, some members of the GOP began to openly criticize Trump for the first time after his reaction to the deadly violence at last month’s white nationalist rally in Charlottesville, Virginia.

Still, Trump has continued to needle them. On Wednesday, he stunned Republicans when he opted to side with Democratic leaders in negotiations to increase the debt ceiling. The move reportedly left Republicans “shocked,” “livid” and “fuming.” Some, like Nebraska Senator Ben Sasse, were openly critical of the deal and the new alliance; others, like Senate Majority Leader Mitch McConnell, showed their true feelings with their tone and body language, if not exactly their words.