Republicans on Capitol Hill quickly lined up behind President Trump after he announced that the U.S. conducted a strike on three Iranian nuclear facilities, a strong show of support for the White House with few detractors inside the GOP.

Trump announced on Truth Social just before 8 p.m. EDT on Saturday that the U.S. “completed our very successful attack on the three Nuclear sites in Iran,” including Fordow, the nuclear site hidden in a mountain south of Tehran. He is scheduled to address the nation from the White House at 10 p.m.

Republican leaders in the House and Senate backed the action, which had become a debate of sorts in Washington especially among GOP since Israel struck Iranian nuclear facilities earlier this month in what it called a “pre-emptive” attack.

“The military operations in Iran should serve as a clear reminder to our adversaries and allies that President Trump means what he says,” Speaker Mike Johnson (R-La.) wrote in a statement on X. “The President gave Iran’s leader every opportunity to make a deal, but Iran refused to commit to a nuclear disarmament agreement. President Trump has been consistent and clear that a nuclear-armed Iran will not be tolerated. That posture has now been enforced with strength, precision, and clarity.”

“The President’s decisive action prevents the world’s largest state sponsor of terrorism, which chants ‘Death to America,’ from obtaining the most lethal weapon on the planet,” he added. “This is America First policy in action. God bless our brave men and women in uniform – the most lethal fighting force on the planet – as we pray for their safe return home. May God bless America.”

Johnson was briefed on the strike beforehand, a source familiar with the matter told The Hill.

Senate Majority Leader John Thune (R-S.D.) wrote in a statement with X: “I stand with President Trump.”

“The regime in Iran, which has committed itself to bringing ‘death to America’ and wiping Israel off the map, has rejected all diplomatic pathways to peace. The mullahs’ misguided pursuit of nuclear weapons must be stopped,” he said. “As we take action tonight to ensure a nuclear weapon remains out of reach for Iran, I stand with President Trump and pray for the American troops and personnel in harm’s way.”

Senate Intelligence Committee Chairman Tom Cotton (R-Ark.) and House Intelligence Committee Chairman Rick Crawford (R-Ark.), similarly, backed Trump after the strike and applauded him for making the “right call.”

“Iran has waged a war of terror against the United States for 46 years. We could never allow Iran to get nuclear weapons. God bless our brave troops. President Trump made the right call and the ayatollahs should recall his warning not to target Americans,” Cotton wrote on X.

“As I have said multiple times recently, I regret that Iran has brought the world to this point,” Crawford echoed in a statement. “That said, I am thankful President Trump understood that the red line articulated by President of both parties for decades was real. The United States and our allies, including Israel, are making it clear that the world would never accept Iran’s development of a nuclear weapon.”

While the majority of Republicans backed Trump in the wake of the strike, there were some GOP detractors on Capitol Hill.

Rep. Thomas Massie (R-Ky.), who has been advocating for the U.S. to avoid intervention in the Israel-Iran conflict, wrote on X minutes after Trump announced the offensive: “This is not Constitutional.” Massie helped lead a bipartisan war powers resolution to prohibit U.S. involvement in the Middle East dispute.

Rep. Warren Davidson (R-Ohio) suggested that the move was unconstitutional.

“While President Trump’s decision may prove just, it’s hard to conceive a rationale that’s Constitutional. I look forward to his remarks tonight,” he wrote on X.

Trump’s decision to strike a trio of Iranian nuclear sites came after a week of debate on Capitol Hill over whether the U.S. should take action in Iran after Israel launched an attack on Iran, prompting a back-and-forth between the two countries.

Trump on Thursday said he would decide whether to take action within the next two weeks.

“Based on the fact that there’s a substantial chance of negotiation that may or may not take place with Iran in the near future, I will make my decision whether or not to go in the next two weeks,” Trump said in the statement read by White House press secretary Karoline Leavitt.

The big question had been whether the U.S. would deploy a large bomb known as a “bunker buster” to strike the Fordow facility, which is underground. While some lawmakers advocated for the move, others including some of the president’s most vocal supporters on the right-flank pushed against the U.S. directly getting involved in the conflict.

Rep. Marjorie Taylor Greene (R-Ga.), for example, said “Me and my district support President Trump and his MAGA agenda, it’s what we voted for in November, and foreign wars weren’t a part of it.” On Saturday night, she offered prayers for the safety of U.S. troops and Americans in the Middle East.

“Let us pray that we are not attacked by terrorists on our homeland after our border was open for the past 4 years and over 2 Million gotaways came in.🙏 Let us pray for peace. 🙏,” she added.

But across the GOP conferences on Capitol Hill, Republicans were quick to back the move by the president.

“Our commander-in-chief has made a deliberateand correct— decision to eliminate the existential threat posed by the Iranian regime,” Senate Armed Services Committee Chairman Roger Wicker (R-Miss.) wrote in a statement on X. “We now have very serious choices ahead to provide security for our citizens and our allies and stability for the middle-east. Well-done to our military personnel. You’re the best!”

House Majority Whip Tom Emmer (R-Minn.), the No. 3 House Republican, said Trump “was right then, and he is right today: NOW IS THE TIME FOR PEACE.”

“A nuclear Iran posed a threat to the Middle East and to the world. @POTUS has been consistent that this dangerous regime should NEVER possess a nuclear weapon,” he added in a statement on X.