Gotham is a font that was made popular by the Obama campaign in 2008. You know it when you see it. So awhile back, Ron Paul released a video deriding current policies and used the very same font:
http://www.youtube.com/watch?v=XKfuS6gfxPY&feature=player_embeddedJust now, a Ron Paul SC Money Bomb ad popped up. It's also using the Gotham font ('Gotham Black' font typed out on the right to compare; yes, the apostrophe appears to be from a different font subset):
So is there some psychological campaign strategy to this? Is the Paul campaign trying to tap into the sentiments of those who supported Obama in 2008 supporters via this font? Obviously it would be just one of many tactics used, but this example fits pretty well. Ron Paul's the "hopey-changey" candidate this go around and he has the hopey-changey font to go with it.