WASHINGTON — President Barack Obama will hit the campaign trail today to rally support for Democratic presidential nominee Hillary Clinton in Pennsylvania, a state that has served as a firewall for her party in the past six general elections but is now viewed as competitive.

Obama is scheduled to appear without the candidate herself. Clinton was scheduled to make a fundraising swing to California, but will take a couple of days off from the campaign trail after being diagnosed with pneumonia.

Obama will speak at a plaza in front of the Philadelphia Museum of Art.

He’ll also attend a fundraiser for the Democratic National Committee in Philadelphia and then fly to New York City for a Democratic Congressional Campaign Committee fundraiser.