Trump 2nd term updates: Trump attends the Super Bowl

As the Trump administration attempts to shrink the workforce of USAID from 14,000 employees to just 300 employees, two foreign service unions are now suing the federal government to block Trump’s attempt to dismantle the organization.

The American Foreign Service Organization and American Federation of Government employees filed the lawsuit in D.C. federal court Thursday, alleging that Trump engaged in a series of "unconstitutional and illegal actions."

"These actions have generated a global humanitarian crisis by abruptly halting the crucial work of USAID employees, grantees, and contractors. They have cost thousands of American jobs. And they have imperiled U.S. national security interests,” the lawsuit said.

The unions argued Congress is the only entity with the authority to dismantle USAID.

The lawsuit said contractors and employees have been laid off, leading medical clinics, soup kitchens and refugee assistance programs across the world to be "shuddered to an immediate halt.”

The lawsuit alleges the Department of Government Efficiency and Elon Musk -- who boasted about "feeding USAID into the woodchipper" -- made the final move to gut the agency, locking thousands out of their computers and accessing classified material improperly.

The plaintiffs asked the court to declare Trump’s actions unlawful and issue an order requiring the Trump administration to "cease actions to shut down USAID’s operations in a manner not authorized by Congress."

-ABC News' Peter Charalambous

The American Cancer Society on Thursday called for President Donald Trump's administration to “restore access to comprehensive data, refrain from changes that would lead to incomplete future data collection and commit to ensure evidence-based science can proceed without additional bureaucracy or red tape,” in a statement from the advocacy group’s interim CEO, Dr. Wayne A. I. Frederick.

The statement comes as some government data sets and webpages have been removed or altered on federal health agency websites.

It notes that disruptions or changes to any government data collection and availability “could compromise understanding of disease burden, emerging trends, and effective interventions.” It further adds that restrictions to gathering and releasing data from federal health agencies could “thwart our ability to address and reduce the cancer burden across all communities.”

-ABC News' Soo Rin Kim, Peter Charalambous, Olivia Rubin

The Federal Bureau of Prisons will hold detainees arrested by Immigration and Customs Enforcement, sources told ABC News.

At least two federal facilities -- in Los Angeles and Miami -- have begun to hold ICE detainees, sources said.

-ABC News' Luke Barr

Longtime Democratic Federal Election Commissioner and Chair Ellen Weintraub on Thursday said President Donald Trump sent a letter removing her from the commission -- a move that election experts say is unlawful.

In a social media post accompanied by a copy of the short letter signed by Trump, Weintraub wrote: "Received a letter from POTUS today purporting to remove me as Commissioner & Chair of @FEC. There’s a legal way to replace FEC commissioners-this isn’t it."

"I’ve been lucky to serve the American people & stir up some good trouble along the way. That’s not changing anytime soon," she continued.

The letter from Trump reads: "Dear Commissioner Weintraub, You are hereby removed as a Member of the Federal Election Commission effective immediately. Thank you for your service on the Commission."

Several election experts have already echoed Weintraub's claim that Trump's unprecedented move is potentially unlawful.

“In claiming to fire a commissioner of the Federal Election Commission, the president violates the law, the separation of powers, and generations of Supreme Court precedent," wrote Trevor Potter, Republican former chair of the FEC and president of Campaign Legal Center, stressing the importance of maintaining the independent nature of the FEC.

Trump’s dismissal of Weintraub comes as other former government officials begin to challenge the president’s single-handed effort to reshape the leadership within the federal government.

-ABC News' Soo Rin Kim, Peter Charalambous, Olivia Rubin