I was pointed to this news article by an entry on Metafilter. Apparently, Justice Sandra Day O'Connor expressed dismay on election night when she heard Gore had been declared the winner in the state of Florida. It seems she wanted to retire, but not if a Democrat could appoint her successor.
When I told my wife about it, she told me a 'joke' she'd heard today:
Of course one vote counts, if you're on the Supreme Court!