Sinema’s career has been a giant metamorphosis, and Democrats could never count on her to be in their corner. This is just another step on her unpredictable path, and Democrats will have to continue to work around her harmful opposition to the filibuster, and her devotion to the Wall Street set, while accepting her support on issues that she agrees with them on.
Democrats should take this as a warning about how far to the left they’ve moved. There’s less room nowadays for moderates, and those who don’t lean far enough left often pay the price by getting harassed while out in public. Sinema probably won’t be the last defector.
Sinema says her policy stances and voting habits won’t change. If she’s still going to caucus with Democrats, what’s the point of changing affiliations? Well, it’s all about her political survival. She’s highly unpopular with Democrats, but now she won’t have to face a Democratic challenger because the party won’t want to risk splitting the left-leaning vote. This isn’t about principles, it’s about reelection.