Rudy Giuliani's decision to drop out wasn't a huge surprise--the New York City mayor is battling prostate cancer and his wife just hired a fancy divorce lawyer--but it was a personal drama of operatic proportions, a thunderclap so loud that mere politics couldn't account for it.

CNN: Rudy's soulful exit

And I think those that are committed, unless you know, unless one of the candidates gets far enough ahead that the other decides to drop out or that the other doesn't - it's not mathematically impossible but very unlikely that one of the candidates could win, then I think there are discussions.

NPR: Candidates Aggressively Court Superdelegates

Democrats didn't urge him to drop out even after the usually see-no-evil Senate Ethics Committee sharply reprimanded him in July.

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