As he crossed the vote threshold, a beaming McCarthy received a raucous standing ovation and warm embraces from his colleagues. He acknowledged his wife and family in the gallery above as Republicans chanted, "USA! USA!"

Becoming speaker of the House has been a career ambition for McCarthy, 57, who served as a House staffer and a minority leader of the California Assembly in Sacramento before being elected to the House in 2006. He has methodically risen through the ranks of the House Republican leadership team — chief deputy whip, whip, majority leader and GOP leader — over the past 14 years.

McCarthy is now the highest-ranking Republican in the nation, and second in line to the presidency.

“He’s relentless. The man does not quit,” Rep. Patrick McHenry, R-N.C., who previously served on McCarthy’s leadership team, said in his nominating speech.

McCarthy accepted the gavel after 1 a.m. Saturday and gave an acceptance speech, promising that the House will be a check on President Joe Biden and his policies.

“You know — my father always told me: It’s not how you start, it’s how you finish," he said. "And now we need to finish strong for the American people."

McCarthy's win came shortly after tempers boiled over and pandemonium broke out on the House floor late Friday night when McCarthy suffered defeat on the 14th straight ballot.

After conservatives again denied McCarthy the votes he needed, Rep. Mike Rogers, R-Ala., the incoming chairman of the powerful Armed Services Committee, charged at McCarthy foe, Rep. Matt Gaetz, R-Fla., and began angrily shouting. Rep. Richard Hudson, R-N.C., had to physically restrain Rogers, pulling back his shoulders and at one point putting his hands over Rogers’s mouth.

Moments earlier, McCarthy himself had walked from his seat, down the center aisle to Gaetz and Rep. Lauren Boebert, R-Colo., to try to flip their present votes to yes; that would have secured the speaker’s gavel for McCarthy.

But when he was unsuccessful, it set off Rogers, who serves alongside Gaetz on Armed Services.

For three days this week, a band of roughly 20 conservative hard-liners voted 11 consecutive times to block McCarthy from winning the prized gavel, even as former President Donald Trump pushed the group to end their opposition. Some called on McCarthy to drop out, while others placed demands on him that jeopardized his fragile GOP coalition of moderates and conservatives.

The intraparty standoff paralyzed the House of Representatives, preventing all 434 members from being sworn in, bills from being voted on and committees from being formed. Some lawmakers lamented they had lost their security clearances and could not receive classified briefings.

It marked a rocky start for the new House GOP majority.

But a breakthrough came on Day 4 of the stalemate. After days of difficult closed-door negotiations, leaders of the far-right House Freedom Caucus extracted a suite of concessions from McCarthy. They included promised spending cuts; a package of rules changes that empowered members and watered down the speaker’s power; and giving HFC members seats on Rules, Appropriations and other powerful committees.

One key concession McCarthy gave to the agitators: Reinstating a rule giving a single lawmaker the power to force a vote to oust a sitting speaker in the middle of the term, a change that almost certainly will haunt McCarthy in the months to come. Previously, McCarthy had agreed that at least five members would be needed to make that “motion to vacate” the speaker’s chair.

In exchange, when the clerk read the roll call on the 12th ballot Friday, 13 of the 20 conservative rebels switched their vote to McCarthy, handing him a surge of momentum after a grueling week of defeats.

On the next ballot, a 14th holdout joined them.

In a dramatic scene, Reps. Dan Bishop of South Carolina, Josh Brecheen of Oklahoma, Michael Cloud of Texas, Andrew Clyde of Georgia, Byron Donalds of Florida, Paul Gosar of Arizona, Anna Paulina Luna of Florida, Mary Miller of Illinois, Ralph Norman of South Carolina, Andrew Ogles of Tennessee, Scott Perry of Pennsylvania and Keith Self of Texas and Chip Roy of Texas stood one by one on the House floor and announced their vote for McCarthy — cheered by their Republican colleagues each time.

On the 13th ballot, Rep. Andy Harris, R-Md., threw his support behind McCarthy as well after repeatedly opposing him.

A 15th Republican, Rep. Victoria Spartz of Indiana, changed her vote from present back to McCarthy.

The fresh support still didn’t earn McCarthy the majority of all House members voting, which he needed to win the speaker’s gavel. But it did hand him a much-needed surge of momentum as members closely watched to see whether his support would fall or rise as the impasse dragged on.

By Friday evening, the final holdouts — once dubbed the Never Kevins — conceded that McCarthy would be elected speaker. Because of the GOP’s razor-thin, four-seat majority, he needed every last vote to get him across the finish line.

Rep. Wesley Hunt flew back to Washington from Texas, where his wife had just prematurely given birth to their baby. And Rep. Ken Buck flew back from his home in Colorado, where he had a medical appointment.

Having now elected a speaker, the House can begin its work under the new Republican majority.