MSNBC's erratic Hardball host, Chris Matthews, has again gone off the deep end with his nonsense talk about the Constitution's three-fifths clause. He's claiming that conservatives believe black people are, or once were, only three-fifths of a person. Why does a group of people that always loses elections or tends to do lately, why do they call themselves American people because - do they still count blacks as three-fifths? Three-fifths of a vote?