I sure hope they battle into June...HELL...I hope they battle into August!
McCain is going to have enough problems of his own considering that the Republicans will have a nominee, for whom many of those who define themselves as 'very conservative', simply, is not tolerable
Furthermore, Democrats seem very energised right now, just look at their primary/caucus turnouts for start. If such enthusiasm holds through to November the Republicans have big problems
Republicans must, surely, be praying for Hillary Clinton to win the Democratic nomination (and that is far from the inevitability it once was) because she'll unite conservatives better than McCain can, as well as being less likely than Obama to bring in crucial Independents, who will decide the election
Still the sooner the Democrats have a winner the better but they need to think very carefully about which candidate will be best positioned against McCain going through February and beyond
Should, as Barone suggests, that the Democratic nomination be determined in Puerto Rico then, IMO, it will be a farce
I wouldn't count your chickens just yet, Mike. I'm not

Dave