The video encourages people to "hold out" for health care -- a clear sexual reference. If health care wasn't an issue, of course, Rock the Vote would be encouraging young people engage in '60's-esque free love.
They then say that young people should "stand against those who fight us with mind body and spirit." As Mark Hemingway of The Washington Examiner points out, "Anyone that pledges their 'mind, body and spirit' to a piece of legislation is an idiot."
Yet another reason to be glad you're not a liberal.