There’s an old joke often expressed well into banquets and conferences, where a speaker says, “We’re at the point where everything that needs to be said has been said, but not everyone has said it.” We’re already at that point with the Democratic primary debates. Tonight was a three-hour ordeal, and candidates largely repeated the arguments they made in the previous two debates. There’s not much reason to expect tonight will generate any dramatic swings in the polling in the coming days or weeks. The conventional wisdom will remain that this is a three-person race, with Joe Biden, Elizabeth Warren, and Bernie Sanders having far and away the best shots at the nomination.

Perhaps the most dramatic moment came when Julian Castro “went there” on Biden’s age. Discussing the government-based health insurance he envisioned, Biden’s verbiage was typically garbled, declaring, “If you lose the job from your insurance company, from your employer, you automatically can buy into this.” So is it a form of health insurance that you choose to buy into, or something you’re automatically enrolled in? Earlier Biden had said, “Anyone who can’t afford it gets automatically enrolled in the Medicare-type option we have.”