Obama said he wouldn't raise taxes on anyone making under $250,000, a promise that's technically already been violated by new taxes on cigarettes and his pledge to sign cap & trade if it gets through The Senate. His aides would say those don't count.
But evens setting those aside, real tax hikes are almost certainly in the works, if only due to the massive amount of new spending (particularly on healthcare) this government has planned. The idea that it can all be financed on the (dwindling) $250k+ crowd is absurd.
more:
http://www.businessinsider.com/coming-soon-tax-hikes-2009-6