Trump admin updates: ICE launches immigration enforcement operation in Boston

Sen. Bill Cassidy told reporters he’s not walking back his support for Health and Human Services Secretary Robert F. Kennedy Jr. despite Kennedy’s changes to vaccine policy and the termination of CDC Director Susan Monarez.

“People are going to try to make this something more than it is. I’m not presupposing anyone is right or wrong. I am saying we’ve got to get to the truth because there are serious allegations and so that will take radical transparency -- to quote the president, to quote the secretary,” Cassidy said.

“So I am not presupposing someone is right or wrong. I just know we’ve got to figure it out,” he said.

Cassidy, a physician who cast a key vote for Kennedy’s confirmation and chairs the committee that focuses on health, has been embroiled in the CDC showdown -- both during the termination, when Monarez called Cassidy to alert him that Kennedy was pushing her out, and afterward, as Cassidy called for oversight investigations into the major staff shakeups at CDC.

But on Tuesday, he maintained that Kennedy and Trump are still in fact-finding mode, and he wouldn’t make a final judgement until all of the data was out there.

-ABC News’ Cheyenne Haslett and Allison Pecorin

Illinois Democratic Gov. JB Pritzker said he expects to see what played out in Los Angeles and Washington to happen in Chicago in the coming days.

"First, Donald Trump is positioning armed federal agents and staging military vehicles on federal property, such as the Great Lakes Naval base. It is likely those agents will be with ICE, Customs and Border Patrol, the Department of Homeland Security and other similarly situated federal agencies. Many of these individuals are being relocated from Los Angeles for deployment in Chicago," the governor said.

Pritzker said he expects agents are planning to "raid Latino communities and say they're targeting violent criminals" and that Trump "will be looking for any excuse to put active duty military on our streets, supposedly to protect ICE."

"We have reason to believe that the Trump administration has already begun staging the Texas National Guard for deployment in Illinois," Pritzker said.

Illinois Gov. JB Pritzker, a Democrat, quickly pushed back on President Trump's comments about sending National Guard troops to Chicago.

"First, I want to address the president's unhinged remarks a few minutes ago begging me to call him. No, I will not call the president, asking him to send troops to Chicago. I've made that clear already," Pritzker said at a press conference.

The governor then addressed residents directly, saying he would share as much as his team knew about the administration's potential action.

"Rumors have been swirling about what the White House has planned, and sifting fact from fiction is increasingly difficult because Donald Trump's administration is not working in coordination with the city of Chicago, Cook County or the state of Illinois," Pritzker said. "I want to take a moment at the top of my remarks to note how truly extraordinary it is for the federal government to refuse to coordinate with local law enforcement and government."

Trump slammed a federal appeals court's decision ruling his tariffs were unlawful.

The president claimed the court was liberal and would cost the country billions of dollars.

Trump said he plans to bring the case to the Supreme Court to appeal and ask for an expedited ruling.