Fighting in swing states, Trump also forced to play defense

Democratic presidential candidate former Vice President Joe Biden waves to the crowd at Miramar Regional Park in Miramar, Fla., Tuesday. (AP Photo/Carolyn Kaster)

Supporters cheer as President Donald Trump departs a campaign rally at John P. Murtha Johnstown-Cambria County Airport in Johnstown, Pa., Tuesday. (AP Photo/Gene J. Puskar)

WASHINGTON — President Donald Trump is being forced to play Electoral College defense with a trip to Iowa, a state he won handily in 2016 but where Democrat Joe Biden is making a late push.