President Donald Trump is going to a Mack Truck facility in a battleground district in swing state Pennsylvania, casting attention on the U.S. economy in his first major public event beyond the capital since he signed the Iran war agreement. Trump’s visit Tuesday to the Allentown-area business comes just about a week after he approved the initial deal to halt hostilities with Iran and as his negotiators work out the finer details. It’s the president’s fifth second-term visit to Pennsylvania, a key state whose support in 2016 and 2024 helped him to the White House.