Because this is now. The Supremes that will be picked next term are crucial.
I just don’t think that Jindal will be the difference between victory and defeat in 2008, and if he is part of a losing campaign (or even a winning campaign and a caretaker presidency) he may damage his future chances for the presidency down the road. Frankly, we can’t afford to waste his potential, IMO.
The only "crucial" decisions will be who will be confirmed by the Democrat and RINO Senate. I don't think their would be much difference if McCain or Obama were president. McCain is closer to Kennedy than Obama and McCain would probably let Kennedy do the vetting of any SCOTUS justice. Obama might listen to some other liberal Democrat. The end result will be the same.