Minneapolis live updates: ICE arrest powers expanded, memo says

Senate Majority Leader John Thune called for a "full and impartial" investigation into the shooting of Alex Pretti, which he called a "tragedy," during a speech on the Senate floor Tuesday.

"I'm glad that the president is sending Tom Homan to Minnesota, and I hope that his arrival will restore order to the situation," Thune said.

As Democrats are threatening to derail all six government funding bills if a bill that funds DHS is not separated out from the larger package, Thune urged his colleagues to advance the full package, including the DHS bill.

Thune said he would "prefer" to keep all six appropriations bills moving as a package, but didn't rule out entirely stripping out the DHS bill.

Later, the senator appeared to break with Trump's suggestion that protestors should not bring guns to protests.

"One, it's a constitutional right. Two, it's legal under the laws of the state of Minnesota. Perhaps [Pretti] didn't have ID, but with that exception, he was in compliance with the laws. He has a constitutional right," he said.

Thune dodged questions about his confidence in DHS Secretary Kristi Noem.

-ABC News' Allison Pecorin and Lauren Peller

A federal judge in Texas has blocked the removal of 5-year-old Liam Conejo Ramos and his father.

They were detained last week as part of the federal government's ongoing immigration crackdown in Minnesota.

In the order issued on Monday, U.S. District Judge Fred Biery said that Adrian Conejo Arias and his son cannot be removed from the district in Texas "during the pendency" of the litigation.

-ABC News' Laura Romero

Rep. Robin Kelly, D-Ill., said Tuesday she now has 162 cosponsors on her effort to impeach Homeland Security Secretary Kristi Noem. That's 50 more since Alex Pretti was killed in a shooting involving federal agents, she said.

No Republicans have signed on so far.

"With me stands 162 House Democrats ready to impeach Secretary Noem, but we need the majority of Congress to open their eyes to her brutality and unconstitutional actions," Kelly said Tuesday.

-ABC News' John Parkinson

President Donald Trump was asked by ABC News' Rachel Scott if he had heard comments from this weekend from his officials who assessed Alex Pretti as a "domestic terrorist" or an "assassin."

"Well, I haven't heard that, but he shouldn't have been carrying a gun," he responded while talking with reporters in Iowa.

Earlier in the day, a reporter told him that Deputy Chief of Staff Stephen Miller labeled the nurse an "assassin." Trump responded, "No," when the reporter asked him if he thought Pretti "was acting as an assassin in Minneapolis."

The president also addressed a question by Scott about pulling federal officers out of Minnesota.

"We'll do whatever's appropriate," he said.

-ABC News' Isabella Murray