What Warren knows is that a small tax cut expiration, or coined "tax increase", isn't changing anything for him. He doesn't need it. He does know the money helps the country rebuild and the poor are taken care of. He knows that in the long run this process makes him more money. So he is seemingly altruistic , but actually, as always, a smart businessman that knows the middle class customer is the building block of the American economy. With a little altruism thrown in.
As for walmart picketing, that's American fredom. The real tea party was about the same thing, and created this UNION.
It isn't changing anything for the government either. Obama could nationalize the entire wealth of the American billionaires and it wouldn't last this government more than a week. The problem is the overspending, inadequate, and uninformed spending practices, rules, and philosophies of Congress.
They have no financial logic or education and there is no accountability for their failures and blatant corruption.