In These Times: I Think Hillary Clinton's Politics Are Terrible. I'm Voting For Her So We Can Grow The Left.
One underappreciated attribute of recent social movements—Occupy, the Movement for Black Lives, low-wage workers, climate justice, immigrant rights, etc.—is the success they have had advancing the left against Barack Obama, who people love and adore. Imagine how much easier it will be against Clinton, who is widely unpopular and distrusted, largely because she enjoys too cozy a relationship with the ownership class. Imagine the boost to militant working-class organizing when the liberal-in-chief lacks a working-class base of enthusiastic support.
If you can't dredge up any other reason, this is good thinking.