Donald Trump commented on Kevin McCarthy.
The process was made more important because of the 2 days of voting that didn't produce a speaker.
20 Republicans are still opposed to McCarthy despite Trump's endorsement.
Donald Trump hailed as a Republican victory the two days of voting in which the party failed to choose a speaker.
"After going through numerous Roll calls that failed to produce a Speaker of the House, I think that the position of getting to be Speaker is more important than if it were done in the traditional way," Trump wrote.
Trump said that he won the presidency in 2016 and that he will win again in 2024. It will be bigger than usual.
On the second day of voting, Kevin McCarthy was unable to get the 218 votes needed to be elected House speaker.
The last time a speaker election was not resolved on the first day was 1923.
McCarthy's candidacy is opposed by 20 Republicans from the hard right of the party, who say they don't trust McCarthy and are trying to get more concessions in exchange for backing him.
Many of the holdouts are strong Trump supporters, but find themselves in the rare position of being on opposite sides of an issue to him, with the former president endorsing McCarthy's candidacy.
McCarthy is one of a number of high-profile Trump endorsees who have struggled to win elections in recent months, with a number of candidates Trump supported falling short.
Some analysts think that the situation highlights Trump's waning powers.
Lawmakers in the House can't be sworn in until the speaker issue is solved, which is on Thursday.
Business Insider has an article on it.