I took in the Michelle Obama Show this week in Charlotte, N.C. The wife of Sen. Barack Obama (D-Ill.) was in town for an election-eve get-out-the-vote rally, to make sure that Obama voters were fired up and ready to go for Tuesday’s primary. Usually, such events are rah-rah, go-team affairs. But Mrs. Obama’s appearance was a little different. It was an hour-long tale of resentment and anger. First, she complained at great length that her husband had been treated unfairly in the Democratic presidential race. Every time he made a move forward, she said, “they” — she never spelled out...