The latest potential-candidate poll for 2008 has Hillary Clinton yet again scoring nearly 20 points more than her nearest rival, Al Gore – 35-16. Hillary has never dipped below 35 percent in any poll of potential Democratic nominees. She remains the overwhelming favorite for the Democratic nomination — and probably the prohibitive favorite. (Oh, and Rudy tops the Republican choices, but I’ll forbear on that except to mention that Mitt Romney is at 4 percent, K-Lo. One, two, three…4 percent.)