Lloyd Smucker

Republican U.S. Reps. Rob Bresnahan and Ryan Mackenzie and Sen. Dave McCormick are set to speak in Dallas. Rep. Madeleine Dean, meanwhile, will join other Democrats for a parallel counter event.

Members of Pennsylvania's congressional delegation so far appear to be split along party lines in their response to the U.S.-Israeli air strikes on Iran, with the notable exception of Sen. John Fetterman.