Trump admin live updates: Trump warns of 'large scale tariffs' on EU and Canada

President Donald Trump has named Alina Habba, his personal attorney turned White House counselor to the president, to serve as the next interim U.S. attorney for the District of New Jersey.

"Alina will lead with the same diligence and conviction that has defined her career, and she will fight tirelessly to secure a Legal System that is both 'Fair and Just' for the wonderful people of New Jersey," Trump wrote in his social media platform.

The president said Habba would replace the current interim U.S. attorney, John Giordano, who he's now nominated to be the U.S. ambassador to Namibia.

"I am honored to serve my home state of New Jersey as Interim U.S. Attorney and I am grateful to President Trump for entrusting me with this tremendous responsibility," Habba wrote on X. "Just like I did during my time as President Trump's personal attorney, I will continue to fight for truth and justice. We will end the weaponization of justice, once and for all."

-ABC News' Fritz Farrow

In a ruling on Monday denying the Trump administration's request to dissolve his previous order blocking the deportations, U.S. District Judge James Boasberg wrote that President Donald Trump's "unprecedented use" of the Alien Enemies Act does not remove the government's responsibility to ensure the men removed could contest their designation as alleged gang members.

"The Court need not resolve the thorny question of whether the judiciary has the authority to assess this claim in the first place. That is because Plaintiffs are likely to succeed on another equally fundamental theory: before they may be deported, they are entitled to individualized hearings to determine whether the Act applies to them at all," Judge Boasberg wrote, adding the men were likely to win their case.

The ruling comes just before the D.C. Circuit Court of Appeal is set to hear arguments as the Trump administration seeks to have Boasberg's block of the law overturned.

-ABC News' Peter Charalambous and Katherine Faulders

A federal appeals court on Monday will hear arguments about President Donald Trump's invocation of the Alien Enemies Act to deport more than 200 Venezuelan migrants alleged to be gang members.

If the D.C. Circuit Court of Appeals overturns a judge's order blocking the use of the centuries-old wartime law, the Trump administration could exercise the authority to deport any suspected migrant gang member with little-to-no due process.

The hearing is set to get underway at 1:30 p.m. Read more about the case here.

-ABC News' Peter Charalambous, Katherine Faulders and Alexander Mallin

President Donald Trump and Louisiana's Republican Gov. Jeff Landry will deliver remarks Monday afternoon in the Roosevelt Room at 2 p.m ET.

Landry, appearing on Newsmax from the White House lawn on Monday morning, praised Trump's executive order to begin dismantling the Department of Education.

At 3 p.m. ET, Trump will participate in a Greek Independence Day celebration in the East Room.