Minneapolis live updates: DOJ launches investigation into Pretti killing, Deputy AG Blanche says

President Donald Trump said in a social media post that Minneapolis Mayor Jacob Frey is "playing with fire" after Frey said the city will not enforce federal immigration laws.

"Surprisingly, Mayor Jacob Frey just stated that, 'Minneapolis does not, and will not, enforce Federal Immigration Laws.' This is after having had a very good conversation with him," Trump wrote on social media. "Could somebody in his inner sanctum please explain that this statement is a very serious violation of the Law, and that he is PLAYING WITH FIRE!"

Frey said on social media on Monday that in his meeting with border czar Tom Homan, he "reiterated that my main ask is for Operation Metro Surge to end as quickly as possible."

"I shared with Mr. Homan the serious negative impacts this operation has had on Minneapolis and surrounding communities, as well as the strain it has placed on our local police officers," Frey said. "I also made it clear that Minneapolis does not and will not enforce federal immigration laws, and that we will remain focused on keeping our neighbors and streets safe. City leaders will continue to stay in conversation with Mr. Homan and his team."

-ABC News' Hannah Demissie

President Donald Trump previewed a "more relaxed" approach from federal agents operating in Minnesota following two deadly shootings in Minneapolis in recent weeks, during an exclusive interview with ABC News' Senior Political Correspondent Rachel Scott on Tuesday.

Trump has assigned White House "border czar" Tom Homan to lead the operation in Minnesota following fierce local and national backlash to violent incidents involving federal agents there.

Asked what would change with Homan now in charge, the president said "we can start doing maybe a little bit more relaxed" and "we'd like to finish the job and finish it well, and I think we can do it in a de-escalated form."

White House border czar Tom Homan said his meetings with Minnesota Gov. Tim Walz and Minneapolis Mayor Jacob Frey on Tuesday were "a productive starting point."

"We all agree that we need to support our law enforcement officers and get criminals off the streets," Homan said in a post on X. "While we don't agree on everything, these meetings were a productive starting point and I look forward to more conversations with key stakeholders in the days ahead."

Homan said that they discussed "the issues on the ground" in the state and added that President Donald Trump "has been clear: he wants American cities to be safe and secure for law-abiding residents -- and they will be."

Republican Sen. Thom Tillis told reporters Tuesday he does not think Homeland Security Secretary Kristi Noem should keep her job.

When asked by a reporter if he still had confidence in Noem after what's occurred in Minneapolis, he responded, "No, not at all. I think she should go."

Tillis is the first Senate Republican to say they believe Noem should no longer serve in her role. Tillis voted to confirm Noem as DHS secretary last year.

This comes after Tillis on Sunday called for a "full and impartial" investigation into Alex Pretti's death in Minneapolis.