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The top two Republicans in Congress had two very different approaches to former President Donald Trump's commanding victory in the Iowa caucuses on Monday night.

House Speaker Mike Johnson, R-La., praised the ex-president and said he was key to the GOP winning back the Senate, White House and retaining the House in November.

On the other side of the U.S. Capitol, Senate Minority Leader Mitch McConnell, R-Ky., is not expected to release a statement, having been silent for most of the 2024 Republican presidential primary so far. 

"Congratulations to President Donald Trump for a resounding victory in Iowa! Today, Republican voters turned out amid harsh conditions and showed their resolve to bring an end to the failed economic and open border policies of President Biden," Johnson's statement said. "We appreciate every candidate, volunteer, and voter who braved the elements and participated in the great caucus tradition."

GOP PRESIDENTIAL PRIMARY BATTLE MOVES ON TO NEW HAMPSHIRE AFTER TRUMP DOMINATES IN IOWA

Johnson, McConnell

House Speaker Mike Johnson endorsed former President Donald Trump for re-election in 2024, while Senate Minority Leader Mitch McConnell has largely stayed out of the race. (Getty Images)

"Tonight's vote was an endorsement of President Trump's extraordinary record and his ongoing vision to fix our economy, secure our border, and defend the freedoms and values that make America great."

Trump swept the Iowa caucues with more than 50% of the vote despite spending less time campaigning in the state than his primary opponents. Johnson suggested Monday night that it was time for the GOP to unite around Trump after his "decisive" victory.

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Trump on stage after Iowa win

Trump won a commanding victory in the 2024 Iowa caucuses. (Jim Watson/AFP via Getty Images)

"With President Trump in the White House and with Republican Congressional majorities, we will work together to build the wall and end the Biden Border Crisis for good, curb inflation and restore our booming economy, rebuild our military, secure our elections, and create prosperity that will last for generations," Johnson said.

"His decisive and historic victory tonight should move our Party closer to uniting so we can achieve the ultimate victory in November."

Earlier this month, Trump scored the endorsement of House Majority Whip Tom Emmer, R-Minn., sending him into the Iowa caucuses with the backing of all the senior House GOP leadership. Johnson had endorsed Trump in November.

QUESTIONS SWIRL ABOUT DESANTIS CAMPAIGN AFTER GOVERNOR LANDS SECOND-PLACE FINISH IN IOWA

House Majority Whip Tom Emmer

House Majority Whip Tom Emmer endorsed Trump earlier this month. (Win McNamee/Getty Images)

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It's a stark contrast with their colleagues in the Senate, where the top two Republicans – McConnell and Senate Minority Whip John Thune, R-S.D. – have stayed largely out of the race. 

However, Trump has been endorsed by Sen. John Barrasso, R-Wyo., the No. 3 Senate Republican, as well as Sen. Steve Daines, R-Mont., the head of the Senate GOP's campaign arm.

Fox News Digital has reached out to McConnell's office for comment.