WASHINGTON (AP) — Donald Trump plans to hold a rally Saturday in northeast Pennsylvania, venturing into an area President Joe Biden considers his home turf in what will be the Republican’s last rally before his criminal hush money trial begins Monday.

The presumptive GOP nominee and former president is scheduled to speak at the Schnecksville Fire Hall in Lehigh County. It will be Trump’s third visit this year to the vital swing state, one that could decide who wins this year’s presidential race. He also plans to attend a fundraiser in nearby Bucks County before the event.

Pennsylvania is a critical battleground in the rematch between Trump and Biden, with both candidates expected to visit the state frequently through November. Trump flipped the state to the Republican column in 2016 but lost it four years after to Biden, who was born in the northeast city of Scranton and has long talked about his roots in the city. Biden plans to deliver a major address Tuesday in Scranton on tax fairness.