I think Trump's endorsement of McCarthy DID sway a HANDFUL of reps over to McCarthy's side. Key word being "handful".
The vote for House Republican Leader was 188 for Kevin McCarthy, and 31 for Andy Biggs.
The latest vote for House Speaker was 201 for Kevin McCarthy, and 20 for Byron Donalds.
Seems like at least 10 or 11 Republicans who DIDN'T want McCarthy as party leader, never-the-less held their nose and voted for him for Speaker.
One problem, Trump had not announced his support for McCarthy until after the voting had concluded for Biggs.
The count has been identical pre and post Trump’s endorsement with the one exception of Victoria Spartz voting present on the 5th and 6th rounds of voting.