Support her because a Trump victory would be a disaster for the values we hold. And support her because a Clinton victory would also be a victory for the Sanders-inspired platform of the Democratic Party, for all the progressive organizations that endorse her, and for continuing the “political revolution” whose future a President Trump would put in dire jeopardy. Support Clinton on November 8—or vote for her early. Then, on November 9, continue the hard work of building a powerful movement of the left.
If you can't dredge up a good reason, at least read this through. It'll help.