House Speaker Mike Johnson is backing a variety of play calls President Trump made in his first week in office, including a decision to fire government watchdogs across most Cabinet-level departments.

Mr. Johnson, Louisiana Republican, also expressed support for the president’s decision to put the Federal Emergency Management Agency under review and his suggestion that Republicans should condition disaster aid for the California wildfires on requiring voter identification at the polls.

The speaker also backed Mr. Trump using the threat of retaliatory tariffs to get Colombia to accept immigrant repatriation flights over the weekend.

“There’s a new sheriff in town,” Mr. Johnson said in a press conference kicking off House Republicans’ annual retreat.

This year’s retreat is being held at the Trump National Doral, the president’s golf club in Miami, Florida.

Mr. Trump was set to address House Republicans at the retreat Monday as the lawmakers prepare to spend the next two days discussing how to enact his legislative agenda, including border security, energy policy and tax and spending cuts.

But as House GOP leaders addressed the press before the start of the retreat, only one question focused on the legislative agenda, while the others were all about Mr. Trump’s week one maneuvering.

The president on Friday night fired 17 inspectors general across a range of federal agencies in a move that some lawmakers said violates a law that requires the White House to provide Congress with a 30-day notice of its intent to fire any inspector general.

Mr. Johnson did not address Mr. Trump’s failure to adhere to the notice requirement but said he supports the president in deciding to replace the fired inspectors general with “new eyes, new voices” as Republicans look to root out waste, fraud and abuse in government.

“The inspector generals, when they are working on all cylinders and to their top level of effectiveness, they can be a huge part of that,” he said. “I think the president appreciates that, but sometimes you have to begin a new page and start with a fresh start.”

Also on Friday, Mr. Trump outlined the conditions he wants to place on federal aid for the wildfires that have ravaged Southern California.

“I want to see two things in Los Angeles: Voter ID, so that the people have a chance to vote, and I want to see the water be released and come down into Los Angeles and throughout the state,” Mr. Trump told reporters.

Mr. Johnson seemed to back his suggestion.

Conditioning wildfire aid to policy changes “is a common sense notion that is supported by the vast majority of the American people, who do not want to subsidize crazy California leftist policies,” he said.

Mr. Johnson said the terms and details of the conditions still need to be worked out but he sees election security in California as “entwined in all of that.”

“Voter ID is a matter that, again, comports with common sense, that most American people see the value in,” he said. “And it will be something we’ll be trying to advance.”

The speaker also supported Mr. Trump’s decision to create a task force to evaluate the efficacy of FEMA. The president has questioned whether FEMA should exist or if disaster response and relief should be handled by the states.

Mr. Johnson said his experience in working with FEMA in natural disaster-prone Louisiana is that the local agency workers “do a pretty good job.”

“But often it’s the leadership at the top that can affect the outcome of how a disaster is handled,” he said. “There’s been a lot of frustration, of course, over the last four years with how FEMA has been handled. And I think the president is right to assess that.”

Mr. Johnson backed Mr. Trump’s decision to threaten retaliatory tariffs against Colombia in a successful effort to get them to accept immigrants being repatriated to the country because they entered the U.S. illegally.

The speaker said the move was not just a message to Colombia but any other country that is reluctant to cooperate with the U.S. as it deports immigrants who are in the U.S. illegally.

“President Trump, you’ve seen, he will have a heavy hand, and we will support him on that, regardless of who stands up against it,” Mr. Johnson said, noting Congress “will engage with sanctions or any other measures that are appropriate to back up the president’s agenda.”

• Lindsey McPherson can be reached at lmcpherson@washingtontimes.com.