the truth if that s a promise he can keep or whether it s his version of read my lips or i ll close gitmo. this evening with presidential politic, and a focus on key battleground states. president obama is in iowa tonight. six electoral votes but a hotly contested tossup state at a wind turbine plant in newton, iowa, the president said he understood times are tough but he argues the republican agenda isn t the answer. when you hear somebody say, we should cut more taxes, especially for the wealthiest americans, well, newton, you ve been there and you ve done that. we did that. 2000, 2001, 2003. when you hear people say that we should cut back more on the rules we put in place for banks and financial institutions to avoid another taxpayer bailout. well, we tried that. that s the president in iowa just moments ago. republican challenger mitt romney has his eyes today on pennsylvania s 20 electoral college votes, encountering some democratic protests as he made his case on