What’s Wrong With Kyrsten Sinema?

In 2003, Joe Lieberman, at the time one of the worst Democratic senators, traveled to Arizona to campaign for his party’s presidential nomination and was regularly greeted by antiwar demonstrators. “He’s a shame to Democrats,” said the organizer of a protest outside a Tucson hotel, a left-wing social worker named Kyrsten Sinema. “I don’t even know why he’s running. He seems to want to get Republicans voting for him — what kind of strategy is that?”

It was a good question, and one that many people would like to ask Sinema...