Romney in 15% Income Tax Bracket

He told reporters: "What's the effective rate I've been paying? It's probably closer to the 15% rate than anything."

He said his income came mainly from post-retirement investments. In addition, he said there were speaking engagements: "And then I get speakers' fees from time to time, but not very much." These fees, which he has already disclosed, amounted to $370,000 in the course of one year. The "not very much" could haunt him in a general election.