WASHINGTON — President Barack Obama says he wants to close the gap between rich and poor. In his State of the Union address Tuesday night, Obama proposed refinancing at lower interest rates on some mortgages, forcing colleges to keep tuition down and higher taxes for the wealthy. In the GOP response, Gov. Mitch Daniels says Obama has resorted to "extremism" to divide Americans. Today the President will set off on a three-day tour of politically crucial states, with his first stop in Iowa, where he will visit a conveyor belt plant.