It hurts different parts of America to different degrees. A strong U.S. dollar is generally good for U.S. consumers and bad for people who work in U.S. export

It hurts different parts of America to different degrees. A strong U.S. dollar is generally good for U.S. consumers and bad for people who work in U.S. export industries. The dollar being the global reserve currency is good for the financial industry and bad for everyone else. So basically Wall Street (and workers in industries where America is dominant anyway, like tech, defense, biotech) should favor a strong dollar, while Main Street should favor a weak dollar. This isn't far off from reality: many of the "U.S. nationalists" represent constituents whose jobs have been eviscerated by foreign competition.