Do the math
1) we already have massive deficits
2) the deficits are projected to increase
3) he wants to expand government by 800 billion to 1 trillion dollars
4) he's never ever espoused broad based tax cuts in his lifetime
5) he has espoused socialistic policies
6) he has already stated that he may not cut taxes if there is an economic downturn.
7) he is an earmark whore
why on God's good earth would you believe he's going to cut taxes? That's simply not reality, it's not in his record, it's not part of his political value system, it's not part of Democratic policy since JFK, and the Democratic party is not the party of JFK today. Obama is a big government liberal in every sense of the word, and such politicians do not cut taxes.
He's flat out lying to get elected. Nothing more, nothing less. I've seen that act far too often to fall for it again. The good thing for Obama is that most Americans hear his promise, but don't think about his promise.