Rudy Giuliani has made official what was only obvious before: He's got it in his New York head to run for president, to which we say, "Go for it, sir."

In so many ways, these last five years were but prelude to the paperwork Giuliani filed Friday to form a fund-raising committee that will help him "explore" whether to formally become a candidate. There's much to explore, starting with the question of whether the Republican Party would rally behind a pro-choice, pro-gay rights, pro-immigration, pro-gun-control blue-stater.