Donald Trump quickly questioned U.S.-Canada trade relations minutes before he planned to meet with Canadian Prime Minister Mark Carney at the White House.

Trump said in The Society of Truth that he was looking forward to meeting and working with Carney, but he “don’t understand” why the United States “subsidizes Canada $200 billion a year, besides giving them free military protection and many other things?”

Trump has long complained about the U.S. trade deficit with trading partners, and he has previously made similar claims against Canada. Trump officials told CNN in January that Trump's $200 billion claim was based primarily on U.S. defense spending, that is, Canada benefits, while the rest comes from Canada's trade deficit.

According to the Office of the U.S. Trade Representative, the U.S.-Canada trade deficit last year was CAD 63.3 billion, and Canadian goods worth over CAD 400 billion were imported into the United States.

"We don't need their cars, we don't need their energy, we don't need their wood, we don't need anything they have, except their friendship, and hopefully we will always keep it."

"On the other hand, they need everything we have! The Prime Minister will arrive soon, which is likely to be my only consequence issue," Trump wrote.

The unfriendly welcome to Carney was a day after Trump downplayed his expectations for the meeting.

"He came to me. I'm not sure what he wants to meet. But I think he wants to reach a deal. Everyone does that," Trump said in response to a question about Carney's visit on Monday.

U.S. Commerce Secretary Howard Lutnick calls Canadian paintings just the economic level of the United States.

"For decades, they've been feeding us for decades, for decades," Lutnick said in a Fox Business interview the day before Carney's visit. "They have a socialist regime, which is basically starting from the United States."

Last year, Canada had more transactions with the United States than any other country outside Mexico, with total goods trading totaling about $762 billion, according to USTR.

But trade relations have faltered as Trump imposes huge tariffs on Canadian goods.

Statistics Canada said on Tuesday that Canadian exports to the United States fell 6.6% in March, while its exports to other countries were nearly 25%.

Trump's tariffs, coupled with his expansionist call for the United States to absorb Canadian politics as a state and his conventional insults and allegations.

After months of polls, Carney's Liberal Party won enough seats in parliament last week to form the next administration. Three months after Trump's term, the Canadian election was seen as a rejection of Trump and the rise of Canadian pride.

Former U.S. ambassador to Canada Bruce Heyman told CNBC's "Squawk Box" Tuesday that the meeting held high stakes for Carney and Trump, who both promised that he could negotiate favorable trade agreements with various countries.

This is developing news. Please check it for updates.