YORK, Pa. (AP) -- Vice President Mike Pence is dropping in on the presidential battleground state of Pennsylvania to tour a robotics maker and headline a state Republican Party fundraiser dinner.
  
Pence's Thursday visit comes as President Donald Trump's campaign is ramping up its re-election effort in a state where he scored a surprise 2016 win and delivered a crushing loss to Democrat Hillary Clinton. He's expected to tout the Trump administration's record in his first visit this year.
  
In the afternoon, Pence will tour York-based JLS Automation. Afterward, he'll head to suburban Harrisburg to speak to a state party dinner crowd.
  
Trump became the first Republican to win Pennsylvania since 1988.
  
Since then, Republicans have suffered a string of high-profile election losses in Pennsylvania, raising questions about whether Trump can win the state again.