Obama has called for a reduction of taxes on the middle class. From the Washington Post

Sen. Barack Obama delivered a second economic speech in as many days on Tuesday, announcing $80 billion in proposed tax cuts for working people, homeowners and seniors with the declaration that "the wealth of our nation is rooted in the work of our people."

Obama (D-Ill.) has made confronting special interests and corporate lobbyists a core theme of his campaign, and he elaborated it in his tax cut proposal. Arguing that rich business interests -- rather than market forces -- have conspired to lobby for tax breaks, Obama said it is time to shift the tax burden away from the middle class.

Obama proposed eliminating tax returns for some 22 million senior citizens, promising that no retiree making less than $50,000 would pay income tax.