20% of GOP votes cast by non-Republicans?  Updated  —  Update: Ed Morrissey has your answer: … Yesterday afternoon, I noted reports of independents voting in the closed Florida Republican primary and pointed out the state law requiring that voters establish party ID by registering 29 days before an election.

On Closed Primaries  —  A number of commenters in my threads from Florida's primary seem confused about what a closed primary means, and what its limits are.  Michelle Malkin and Flip Pidot also blogged about this overnight, but miss the point of exit polling showing voter inclinations and not actual registration.

Edwards quitting presidential race  —  (CNN) — Former Sen. John Edwards is dropping out of the race for the Democratic presidential nomination, CNN has learned.  —  Edwards has told top advisers about his decision.  It is expected he will announce it at a speech in New Orleans, Louisiana, at 1 p.m. Wednesday.

McCain may win, Romney can't  —  Some may agree with Sen. John McCain's (R-Ariz.) positions on his myriad of causes and enthusiasms.  Others may embrace Mitt Romney's record as governor and his experience in business.  But one fact remains pre-eminent — McCain has a much better chance …

For Giuliani, a Dizzying Free-Fall  —  As Rudolph W. Giuliani ponders his political mortality, many observers point to the hubris and strategic miscalculations that plagued his campaign.