The world has changed since Biden visited a familiar place to talk up familiar topics, though. Other domestic matters also are competing for political attention, with the fight over choosing the next Republican House speaker potentially imperiling continued U.S. aid to Ukraine and a United Auto Workers strike entering its fifth week. Biden's reelection campaign has joined the White House in stressing that being president always means juggling multiple pressing concerns. Whatever the message, the president can help himself politically Friday just by staying focused on Pennsylvania, said longtime Democratic strategist Robert Shrum. He returned to Philadelphia in July, visiting a shipyard where he talked up how organized labor would lead a major push toward embracing green energy.

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