President Donald Trump said on Tuesday he was not thinking of extending the July 9 deadline for countries to negotiate trade deals with the U.S., and continued to express doubt that an agreement could be reached with Japan.

The Trump administration has been narrowing its focus to America’s 18 largest trading partners, and as the deadline approaches to reinstate the president’s “Liberation Day”

We’ll just be sending them a letter,” Trump said, after suggesting Japan wouldn’t agree to boost U.S. rice imports.