in a dead heat. the geeft for republicans could be evidence of a exactic wave in the midterm elections. nbc news white house correspondent jeff ben set in moon township, pennsylvania where the president will soon speak. the crowd seems to be growing behind you. looks like a fullhouse so far. >> almost, frances. i tell you i spoke to one of the supporter here for this event and i asked him outside what do you want to see? he said he wants to see a show. and judging from previous campaign style rallies from this president we can expect some of that. but the president has serious work to do. he has to rev up the republican base, more to the point the trump base to come out and vote for rick saccone, the republican running for the open congressional seat in pennsylvania's 18th district. in the last couple hours or so the president put on twitter a message that i think gives a pretty good preview of what we might hear. the president saying heading to moon township, pennsylvania, to be a good person, state representative rick saccone,