The Wisconsin congressman attacked Democratic President Barack Obama's record on jobs, taxes and spending Saturday and said GOP presidential nominee Mitt Romney would use his business experience to solve those problems.
Former national homeland security chief Tom Ridge, Pennsylvania Gov. Tom Corbett and U.S. Sen. Pat Toomey, who shared an apartment with Ryan earlier in their congressional careers, warmed up the crowd that nearly filled a hangar at a private terminal at Harrisburg International Airport.
The Pennsylvania event is part of a daylong tour that includes Ohio, Virginia and Florida.
On Sunday, Romney is scheduled to visit Pennsylvania for the first time since September.