I always figured it would be over testimony on war intelligence rather than personnel matters, but it looks like prosecutor-gate may finally trigger that Constitutional crisis we've all been anxiously awaiting. Democrats are determined to get Gonzales and Rove under oath and before committee; Bush is determined -- or so it seems -- not to put him there. What's not clear to me, though, is what Congress can actually do. The Bush administration has nothing to lose by throwing this to the Courts. They're already wildly unpopular, so another public image hit will hardly be noticeable. Their agenda is totally stalled, so it's not as if they'll lose momentum. The White House isn't putting forth a successor, so they're not trying to protect anyone's political career. In the end, the administration is in such total disrepute that there's scarcely anything more that Congress can take from them. What sort of leverage does the Senate actually have?