David Brooks is the New York Times op-ed columnist I tend to jibe with the most. Also I really like him on the Chris Matthews show on the Sunday morning triumverate of Chris Matthews (Tell me something I don't know), Meet the Press (Mr. McCain, this is what your aide said in late 1989...(reading an entire speech made by some guy at an 8th grade graduation, and then 5 minutes later)...How do you respond?), and McGlaughlin Group (Issue one, on a scale from one to ten, with one being zero chance and ten being absolute metaphysical certitude, what is the chance that Hillary Clinton steps down before the convention?).
Anyway, David Brooks's column from today, The Long Defeat, explains why Hillary Clinton can't win the nomination, and also why she's not going to quit. I can't put it any better than he did, so I won't. Just read it.