Anyone who is part of the two party system in the United States will receive corporate backing. Although there will certainly be competition between different aspects of Capital about whom to support and which party, to even assume that any of the current candidates would be outside the system is bizarre.
To this extent, bashing Obama because he isn't part of the left and should be (because he is black) loses sight of how much Capital props up the US political system. Yes Obama would be very refreshing after Bush but he won't change much past the periphery.
[The US vs Europe debate was even more disturbing given how quickly participants resorted to partisan positions and lost all sense of what's most important to Capital - free movement of funds and labour.]
Simon Ward