Trump 2nd term updates: Trump says USAID is run by 'radical lunatics'

President Donald Trump told reporters on Sunday that he’s not concerned about the impact tariffs might have, saying the American people will understand.

The president's remarks come after White House officials announced Saturday that Trump has imposed 25% tariffs on Mexico and Canada as well as 10% tariffs on goods from China.

"I'm not concerned. We may have short-term -- a little pain, and people understand that, but long-term, the United States has been ripped off by virtually every country in the world," he claimed, adding, "That's why we owe $36 trillion -- we have deficits with everybody."

Trump alleged that Canada has been taking advantage of the US, calling the relationship with our northern neighbor a "one-way street."

“Canada has been very abusive of the United States for many years," Trump said, claiming the country has been "tough on oil" and should accept American banks and farm products.

"Essentially, they don't allow a lot of things in, and we allow everything to come in. It's been a one-way street," he said.

President Donald Trump said he will be stopping "all future funding" to South Africa in a post on Truth Social that also claimed that the country is confiscating land and treating certain classes of people unfairly. It is not clear what Trump is referring to.

Trump wrote that the United States will not tolerate what's happening and, without elaborating, called for a "full investigation" of the situation.

"South Africa is confiscating land, and treating certain classes of people VERY BADLY. It is a bad situation that the Radical Left Media doesn’t want to so much as mention. A massive Human Rights VIOLATION, at a minimum, is happening for all to see," he alleged.

Trump continued, "The United States won’t stand for it, we will act. Also, I will be cutting off all future funding to South Africa until a full investigation of this situation has been completed!"

ABC News has reached out to the White House for comment.

-ABC News' Hannah Demissie

U.S. Secretary of Defense Pete Hegseth announced on Sunday that he will visit troops stationed on the southern border this week amid the Trump administration's intensified immigration efforts.

Hegseth said he will visit Fort Bliss in El Paso, Texas, on Monday.

"POTUS wants 100% operational control of the border—and we will deliver," Hegseth wrote in a post on X.

The Department of Defense on Sunday confirmed the arrival of 500 Marines to Guantanamo to set up facilities that will hold deported migrants.

The DOD identified them as the 1st battalion, 6th Marine Regiment from Camp LeJeune, North Carolina, and posted photos to X.

The social media post says they’ll be there “to prepare to expand the Migrant Operations Center” as the administration prepares to follow through on President Donald Trump's comments last week that the base will be used to temporarily house as many as 30,000 deported migrants who are awaiting processing to return to their home countries.

While Defense Secretary Pete Hegseth has said that deportees would be housed at temporary facilities on the base, on Friday he told "Fox & Friends" that the prison facility that houses al Qaeda detainees would be used to house “the worst of the worst,” which he said were criminals or belonged to criminal gangs.

A U.S. official confirmed to ABC News that planning is underway for deportation flights to take deported migrants to Guantanamo.

-ABC News' Luis Martinez