President Donald Trump on Wednesday said he might go to the Supreme Court next month to hear oral arguments in the major tariffs case that could determine the fate of his protectionist trade agenda.

If he goes, Trump would apparently be the first sitting U.S. president to attend Supreme Court arguments.

"We have a big case coming up in the Supreme Court, and I will tell you, that's one of the most important cases in the history of our country," Trump said in the Oval Office.

"If we don't win that case, we will be a weakened, troubled, financial mess for many, many years to come," he said.

"That's why I think I'm going to go to the Supreme Court to watch," Trump said.

The Supreme Court is scheduled to hear arguments on Nov. 5 on Trump's request that it overturn lower-court rulings, which found that a president does not have authority under the International Emergency Economic Powers Act to impose the country-specific tariffs he implemented earlier this year.

The White House did not immediately respond to CNBC's request for comment on Trump's statement.