The brother of Kerry Bentivolio says the Michigan congressional candidate, who's favored to win on Tuesday, is “mentally unbalanced” and could end up in jail.

"I've never met anyone in my life who is conniving and dishonest as this guy," Phillip Bentivolio said, according to the Michigan Information and Research Service   (subscription required). "He's my brother so it's hard to talk about this, but I believe that if he gets elected, he'll eventually serve time in prison."