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

President Trump announced that he'll be sending his border czar, Tom Homan, to Minnesota on Monday night.

But the president is also continuing to try to draw attention away from the fatal shooting of Alex Pretti over the weekend by focusing on other issues in the state, including writing about the alleged fraud there and mentioning Rep. Ilhan Omar.

"I am sending Tom Homan to Minnesota tonight. He has not been involved in that area, but knows and likes many of the people there. Tom is tough but fair, and will report directly to me," Trump wrote in a social media post.

Trump went on to claim that the Department of Justice and Congress are investigating Omar, but as of now, House committees are investigating alleged fraud in Minnesota, not specifically Omar.

-ABC News' Hannah Demissie

A federal judge will hear arguments Monday on whether she should at least temporarily halt the immigration crackdown in Minnesota that has led to the fatal shootings of two people by government officers.

The state of Minnesota and the cities of Minneapolis and St. Paul sued the Department of Homeland Security earlier this month, five days after Renee Good was shot by an Immigration and Customs officer. Saturday's shooting by a Border Patrol officer of Alex Pretti has only added urgency to the case.

Since the original filing, the state and cities have substantially added to their original request. They're trying to restore the state of affairs that existed before the Trump administration launched Operation Metro Surge on Dec. 1.

The hearing is set for Monday morning in federal court in Minneapolis. Democratic Minnesota Attorney General Keith Ellison said he plans to personally attend.

Secretary of Veterans Affairs Doug Collins has issued a statement confirming that Alex Pretti, who federal agents fatally shot on Saturday, was a nurse at the Minneapolis VA Medical Center, and Collins offered his condolences to the Pretti family.

Collins went on to blame state and local officials, saying in his statement, "Such tragedies are unfortunately happening in Minnesota because of state and local officials' refusal to cooperate with the federal government to enforce the law and deport dangerous illegal criminals."

-ABC News' Nicholas Kerr

Former President Bill Clinton issued a statement on Sunday speaking out about the "unacceptable" and "horrible scenes" in Minneapolis and other communities, including the fatal shootings of Renee Good and Alex Pretti.

"At every turn, the people in charge have lied to us, told us not to believe what we've seen with our own eyes, and pushed increasingly aggressive and antagonistic tactics, including impeding investigations by local authorities," Clinton said.

"Over the course of a lifetime, we face only a few moments where the decisions we make and the actions we take will shape our history for years to come. This is one of them," Clinton said.

"If we give our freedoms away after 250 years, we might never get them back. It is up to all of us who believe in the promise of American democracy to stand up, speak out, and show that our nation still belongs to We the People," he said.