U.S. President Donald Trump has said it is “not possible to meet the number of people that want to see us” to reach individual trade deals with all its trading partners, in the latest tactic in his attempt to lower America’s trade deficit.

Speaking May 16 at a meeting with business leaders in the United Arab Emirates on his tour of the Gulf, Trump said: “We have, at the same time, 150 countries that want to make a deal, but you’re not able to see that many countries.”

The Guardian reports that the U.S. will instead send letters to some of its trading partners to unilaterally impose new tariff rates, suggesting that Washington lacks the capacity to negotiate deals with scores of countries.

Trump said his treasury secretary, Scott Bessent, and the commerce secretary, Howard Lutnick, would be “sending letters out essentially telling” some of Washington’s trading partners what tariff rates would be imposed on their exports to the U.S.

“At a certain point over the next two or three weeks, I think Scott and Howard will be sending letters out essentially telling people — it will be very fair — but we’ll be telling people what they’ll be paying to do business in the United States,” he said.

More: Watch: The Long-Term Impact of Trump’s Tariffs on U.S. Influence in the World

After announcing a “total reset” in relations between China and the U.S. May 12, the White House has signaled it is prioritizing talks with dozens of the U.S.’s largest trading partners, including India, South Korea and Japan, while negotiations with the EU are ongoing.

However, his comments suggest Washington lacks the bandwidth to negotiate with hundreds of countries at once, while indicating that the president will instead push to dictate terms.