President Trump, who has insisted Aug. 1 is a firm deadline for countries around the world, said that "the complexities of a Deal with Mexico are somewhat different from other Nations."

President Donald Trump signed an executive order Thursday that would have new tariffs on a wide swath of U.S. trading partners to go into effect in seven days — the next step in his trade agenda that will test the global economy and alliances.

After Canada failed to strike a trade deal with Washington, the president raised tariffs on some Canadian exports this week.