Nate Silver: Hillary does not have a problem on her left

[Hamster]

Yeah, there's no left credible left challenge to Clinton because there's no figure with the stature to become a voice for that challenge.

It all depends on the national mood. It's hard to say where we will be in a year and a half, but putting boots on the ground in Iraq is a real possible. If the conditions are right, even Bernie Sanders could mount a serious challenge from the left.