Do you have student loans? I recommend watching this short clip of President Obama slow jamming the news on Jimmy Fallon last night.
Humor and likability are persuasive ways to get people to vote for you. I think this technique is working well for Obama.
When you first log on to www.BarackObama.com the website asks you for your E-mail address and phone number. This is an example of the Foot-in-the-door technique, and I think that it works well. It is a very small request, with no money or time commitment involved, and may get the person involved sometime after the 2 seconds it takes to give that information over.
Another website that promotes Obama's re-election is his Facebook page. Facebook is a very powerful tool, especially if you're trying to garner the youth vote. One persuasion technique used on this website is the "Characteristics of the Messenger" technique.
Obama is endorsed by and poses with one of the most famous and popular actors in the country George Clooney. Research shows that we're more likely to be persuaded if the message is delivered by attractive people. I think this may be preaching to the choir a bit, but if even the smallest percentage of people are persuaded by this, it would be a worthwhile technique of the campaign.