Trump says 3rd term isn't a joke, despite term limit

President Donald Trump signed an executive order behind closed doors on Thursday directing federal agencies and the Smithsonian Institution to eliminate what the order calls "divisive" and "anti-American" content from museums and national parks, according to sources familiar with the order.

The order, title "Restoring Truth and Sanity to American History," directs the vice president and the secretary of the Interior Department to restore federal parks, monuments, memorials and statues "that have been improperly removed or changed in the last five years to perpetuate a false revision of history or improperly minimize or disparage certain historical figures or events."

The order also directs the vice president, who is a member of the Smithsonian Board of Regents, to work to eliminate improper, divisive or anti-American ideology from the Smithsonian and its museums, education and research centers, and the National Zoo.

-ABC News' Katherine Faulders, Rachel Scott and Will Steakin

President Donald Trump on Thursday night is set to join a tele-rally in support of Brad Schimel, the conservative candidate in the high-profile Wisconsin Supreme Court race, multiple sources tell ABC News.

The tele-rally is scheduled for Thursday ahead of next week's election. Trump is also expected to join other tele-rallies for House candidates.

Trump formally endorsed Schimel last week.

Elon Musk has also revived his controversial $1 million giveaway in support of Schimel, running a sweepstakes for Wisconsin voters who sign a petition against "activist judges."

-ABC News' Will Steakin

Canadian Prime Minister Mark Carney in a speech on Thursday criticized the Trump administration's approach to tariffs, which have fueled a global trade war.

"It's clear the United States is no longer a reliable partner," Carney said.

"I understand and respect his goal to support American workers. But I disagree with him that this is how to help them. With time, it will become apparent that these actions will end up hurting American workers and American consumers," he said.

Carney added, "Our response to these latest tariffs is to fight, is to protect and to build."

A federal judge has ordered the Trump administration to preserve the now-infamous Signal chat related U.S strikes in Yemen.

U.S. Judge James Boasberg ordered during a hearing Thursday afternoon the top cabinet officials named in the lawsuit to retain any messages over Signal between March 11 and March 15.

Benjamin Sparks, a lawyer representing American Oversight, raised concerns that "these messages are imminent danger of destruction," prompting Boasberg to order the Trump administration file a sworn declaration by Monday, March 31 to ensure the messages are preserved.

According to screenshots of the Signal messages published by The Atlantic, the messages were set to disappear after a certain timeframe. Originally, the messages were set to disappear after one week.

Then, according to screenshots of the messages published by the magazine, on March 15 – after Hegseth sent the first operational update – the messages were set to disappear after four weeks.

Judge Boasberg declined, for now, to order the Trump administration to disclose if Signal had been used by the Trump administration in a wider context.

"I don't think at this point that that's something that I would be prepared to order," he said.

-ABC News' Katherine Faulders