Republican Kevin McCarthy has been elected as the new US Speaker after winning the 15th vote following chaotic scenes in Congress.

Mr McCarthy’s party had taken control of the House – the US lower chamber – following the midterm elections in the autumn, with a slim 222-212 majority.

Usually, election of the Speaker follows seamlessly, as a formality, with the leader of the largest party a shoo-in for the job.

However, recent splits in the Republican party meant that did not happen until the 15th round of voting.

In the 14th ballot, Mr McCarthy received 216 votes – one shy of the number needed for a victory – as a small faction of right-wing hardliners held out.

He won at last on a margin of 216-211.

He was elected with the votes of fewer than half the House members only because five in his own party withheld their votes – not backing Mr McCarthy as leader, but also not voting for another contender.

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US President Joe Biden congratulated him on his success and said he is “prepared to work with Republicans” when he can.

‘Stay civil’

After the 14th round, a tense exchange ensued, with Mr McCarthy seen walking to the back of the chamber to confront Rep. Matt Gaetz, who did not vote for him.

Mr Gaetz was one of the six remaining Republican holdouts, and voted “present” in the 14th and 15th round.

This essentially meant he registered that he was in the House for the vote, but did not back anyone as the next speaker.

A hostile back and forth took place after Mr McCarthy approached him, while a number of Republican lawmakers began to crowd them.

Rep. Mike Rogers, who did back Mr McCarthy in the vote, appeared to lunge in the direction of where Mr Gaetz was sitting, but was held back by other members.

“Stay civil,” someone was heard shouting.

Rep. Richard Hudson – another Mr McCarthy supporter – was also seen grabbing Mr Rogers around the mouth, but it was unclear what the argument was about.

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Tempers flare in Congress vote

McCarthy’s extensive concessions

A handful of far-right Republicans had felt Mr McCarthy was not conservative enough for the job, despite him agreeing to many of the detractors’ demands.

One of the most difficult requests that Mr McCarthy has agreed to is the reinstatement of a longstanding House rule that would allow any single member to call a vote to oust him from office.

That will sharply cut the power he will hold when trying to pass legislation on critical issues including funding the government, addressing the nation’s looming debt ceiling and other crises that may arise.

The Speaker is one of the most powerful positions in US politics, and this week’s failed votes marked the highest number of ballots for the speakership since 1859.

Sessions to decide on the person for the job had rumbled on for hours in the chamber this week – one even topping eight hours.