To get to the left of Obama you'd have to nominate George Soros. There can't possibly be more than 5 people on our continent to his left and besides, if Obama wins this year, I can guarantee he leads without a care for what the public thinks and only screws his party's chances for 2016. Under those circumstances, having a candidate like George Soros or Dennis Kucinich doesn't seem to help at all. We'll have to wait and see who the elders and donors of the Democratic Party decide is going to be their nominee by that point.
So your essentially saying he's a communist. Very original.
Schweitzer is the perfect nominee for the Dems in 2016. I'd say he's slightly more to the left on economic/energy issues, but to the right on gun control.