research and development tax break. this is an extension of an existing tax break and costing $100 billion. they have to find a way to pay for that. then he returns to washington and the white house on friday. a daytime press conference time tba but the economy's expected to dominate there, as well, thomas. >> what's the sub text on the locations that the president picked? >> reporter: great question. you know, obviously, wisconsin today and ohio on wednesday. swing states. the president visits those states and others, north carolina, iowa, pennsylvania quite frequently. one interesting side light, though, talking about the politics and the optics of this, the president goes to milwaukee today. there's a senator there who's embattled with a tough race. a liberal icon really. russ fine gold. but feingold not appearing with the president at the labor day rally in milwaukee. he'll be 60 miles away in janesville, his hometown, at a separate rally. a lot of democrats running away from the president. don't want to be seen with the