Republican presidential candidate Buddy Roemer believes he’s gaining momentum. “My best fundraising week was last week,” the former governor and congressman from Louisiana tells Slate‘s Dave Weigel. “I raised enough money to buy a ticket to one of Obama’s fundraisers.”

Roemer’s primary issue has been money–and the role money plays in politics. He’s capped donations to his campaign at $100 dollars a person, well below the legal limit, and promises not to take special interest money. He is, he tells Weigel, “running against corruption.”