In a White House ceremony attended by Rupert Murdoch, the News Corp and Fox Corporation chairman emeritus, Trump alluded to the possible sale of TikTok as he signed the sovereign wealth fund executive order.

“We have a lot of things that create wealth,” Trump told reporters Monday in the Oval Office. “We’re going to do something, perhaps with TikTok. … We might put that in the sovereign wealth fund.”

One of Trump’s first actions upon returning to the White House was giving TikTok’s parent company, ByteDance, a 75-day reprieve from a disinvestment law that could shutter the app in the United States.

Trump used the signing ceremony as an opportunity to criticize Canada, with continuing negotiations between him and Canadian Prime Minister Justin Trudeau amid threats of 25% tariffs from both sides.

Though Trump conceded he and Trudeau had a “good talk” on Monday morning ahead of another call in the afternoon, the president said the U.S. has not been “treated well” by Canada, contending its cars, lumber, and agriculture were unimportant to the domestic economy.

Trump also did not downplay the possibility of 10% tariffs being imposed on China before a separate meeting with Panama on Friday or speculation he would provide aid to Ukraine in exchange for rare earth minerals.

“We’ll have some good meetings with China. We have meetings planned, and we’ll see what happens. But that was just an opening salvo. If we can’t make a deal with China, then the tariffs will be very, very substantial,” he said.

Trump was additionally asked about Tesla, SpaceX, and X CEO Elon Musk‘s conduct as head of the Department of Government Efficiency after the commission told most USAID employees to work from home on Monday as reforms are introduced across the agency. USAID could be moved under the State Department despite congressional blowback, with Secretary of State Marco Rubio telling reporters he is its acting head.

Trump told reporters he had not identified any conflicts of interest regarding Musk but would not permit him to participate in projects if there were problems.

When asked whether Musk has done anything without his approval, Trump said, “He reports in.”

“He’s got access only to letting people go that he thinks are no good if we agree with him and only if we agree with him,” the president added. “Where we think there’s a conflict or there’s a problem, we won’t let him go near it.”