The current tenure of the Republican party as "leaders" in the House of Representatives has - to put it nicely - been a shitshow. When they first took charge this past January, it took them an unprecedented 15 tries to finally get enough people to vote for Kevin McCarthy (R-CA) that he was able to assume the speakership.
The main stumbling block was a small group within their party with the absurd name of "the Freedom Caucus". These are about 10-15 extremists whose apparent goal is to destroy our government from within. McCarthy had to make a bunch of concessions to win their vote, including the one that did him in. That concession was to allow just one person to push for a "no confidence" vote to oust him.