The House of Representatives began voting on its next speaker Friday after outgoing Speaker Mike Johnson was nominated by Republicans and Democratic nominee Rep. Hakeem Jeffries.

Earlier Friday, President-elect Donald Trump again called on his fellow Republicans to choose Johnson as speaker.

Trump’s support on social media came as Johnson – whose current term as speaker expired at 11 a.m. ET – faces a potentially very close vote in the House of Representatives, where Republicans hold an extremely narrow majority.

With all 434 House members showing up to vote, Johnson will need nearly every Republican to vote for him as speaker.

“Good luck today to Speaker Mike Johnson, a great man with great ability who is on the verge of receiving 100% support,” Trump wrote in a Truth Social post.

“A win for Mike today would be a major victory for the Republican Party and further recognition of our most consequential presidential election in 129 years!!” Trump wrote. “A GREAT ACKNOWLEDGMENT, INDEED. MAGA!”

Johnson, who represents a district in Louisiana, needs a majority of House members to become speaker of the 119th Congress.

The Republicans have 219 seats in the new Congress. The Democrats have 215 seats.

This close split means Johnson will need at least 218 Republican votes to be elected speaker if every House member is present and every Democrat votes for New York’s Jeffries.

Should two or more Republicans decide to vote for someone else, Johnson’s total support would fall below 218 and he would not be elected speaker in that vote.

Representative Thomas Massie, a Republican from Kentucky, had previously said he would not support Johnson.

Massie voted for Representative Tom Emmer in the first round of voting on Friday.

Another Republican, Rep. Ralph Norman of South Carolina, voted for Rep. Jim Jordan, R-Ohio.

Johnson was elected Speaker for the first time on October 25, 2023, three weeks after then-Rep. Rep. Kevin McCarthy, R-California, was ousted from that seat when a handful of Republican members joined all Democrats to vote for his removal.

Johnson was the fourth candidate to replace McCarthy.

McCarthy himself had only been speaker for nine months when he was ousted – he was elected speaker for the first time in January 2023 after four days of voting and 15 ballots.

This is developing news. Check back for updates.