President Trump’s territorial assertions sparked a round of rethinking by mapmakers and teachers, snark on social media and sarcasm by at least one other world leader.

William McKinley, the 25th president, loved tariffs and expanded American territory. What more do you need to know?

President Donald Trump started his second administration with a blitz of policy actions to reorient the U.S. government.

President Donald Trump has vowed to lower prices for all Americans, but his tariff proposal could work counter to that goal.

McKinley lost his seat in Congress that same year. People blamed the unpopularity of tariffs for Republican President Benjamin Harrison's (also an Ohioan) defeat in 1892. Democrat ...