President Donald Trump suggested Friday that the United States was close to reaching trade deals with multiple countries but held out the prospect of reimposing high tariffs on some trading partners, introducing fresh uncertainty into his trade talks.

Scott Bessent, the treasury secretary, had suggested earlier in the day that the administration might give countries more time to negotiate beyond a quickly approaching deadline for tariffs to snap back into effect July 8. In an interview Friday, Bessent said negotiations with trading partners could be “wrapped up by Labor Day,” adding that “nothing gets done in Washington well in advance.”

But at a news conference Friday, the president seemed inclined to keep everyone guessing. Asked whether he would reimpose tariffs July 8, he responded, “We can do whatever we want.

“We could extend it. We could make it shorter,” Trump said. “I’d like to make it shorter. I’d like to just send letters out to everybody, ‘Congratulations, you’re paying 25%.’ ”

Trump also said the United States was in the “process” of making deals with some countries, but that other countries would receive a letter stating the tariffs their exports now face.

“We’re just going to tell them what they have to pay,” he said.

Trump quickly followed up his remarks with a social media post threatening tariffs against Canada, which is set to begin collecting taxes charged on American tech companies Monday.

In a post on Truth Social, Trump called Canada’s digital services tax “a direct and blatant attack on our country.”

“Based on this egregious Tax, we are hereby terminating ALL discussions on Trade with Canada, effective immediately,” the president wrote. “We will let Canada know the Tariff that they will be paying to do business with the United States of America within the next seven day period.”

Foreign governments, including Canada, have been working to strike trade deals to avoid steep global tariffs, which Trump first announced in April, but then paused for 90 days to allow for negotiations.

U.S. officials have said they are holding trade talks with roughly 18 trading partners, including the European Union, Japan, Vietnam, India and Malaysia, and they appear to be nearing preliminary deals with several of those governments.

Trump claimed on Friday that he had made trade deals with “four or five different countries,” despite little evidence to support that.

The United States announced a limited framework deal with the United Kingdom in May and has been getting close to preliminary deals with other countries like Vietnam and India, but those deals have not yet been announced.

In an interview on Friday morning, Bessent had suggested that negotiations with trading partners could be extended into September.