The real key is convincing people who were pro-Obama last time to vote for someone other than Obama. The person I'm seeing is\was a flaming libtard\oh-my-gawd-Obama-is-the-best-thing-since-sliced-bread voter last time. This time, she's at least looking at other options. She doesn't like Romney, meh on Gingrich, and anyone who bad-mouths gays is toast in her book so Santorum is out. So she'd either vote for Paul or Obama. There's going to be a lot of people in the similar boat.