Sean Bielat, the Republican candidate for Congress in Massachusetts' 4th District, has had just one conversation with his Democratic opponent, Rep. Barney Frank. It was in August, at a parade in New Bedford. "I went up to introduce myself and said, 'Nice to meet you,'" Bielat recalls. "He said, 'I wish I could say the same, but you've made this personal. You've been attacking me.' Then he turned and walked away." Bielat remembers thinking that was a little odd, since at that very moment Frank's Web site featured plenty of attacks on Bielat. But the brief encounter set the tone...
