Let them. Their members are anxious to get home. The longer they are in DC, the more time for GOP challengers to attack, attack, attack.
A central thesis to the McCain candidacy is that he can get things accomplished across bipartisan lines. Essentially he is assuming the mantle of presidential leadership.
Another point: McCain has gotten inside BO's head and rattled him again. BO has done all this cramming on foreign policy for Friday, perhaps for naught. Additionally, the global economic implications of foreign policy are now guaranteed to enter the Friday debate, which further escalates BO's learning curve. He's cramming for an exam for which McCain is continuing to raise the stakes.
The Dems are in a box. This kind of opportunity rarely presents itself. Kudo to Team McCain for siezing it!
Nonetheless, the best of the bad options is for the Dems to drag this out.
If they cut & run and all go home it will be undeniable evidence that they’ve abandoned Obama.
I prefer to think of it as The Strategy of the Fighter Pilot; Specifically, I think McCain is inside Obama's OODA loop:
Observation; orientation; decision; action. On the face of it, Boyd's loop is a simple reckoning of how human beings make tactical decisions. But it's also an elegant framework for creating competitive advantage. Operating "inside" an adversary's OODA loop -- that is, acting quickly to outthink and outmaneuver rivals -- will, Boyd wrote, "make us appear ambiguous, [and] thereby generate confusion and disorder."
I've long felt that McCain has been treating this as a war; perhaps this is his strategic approach.
Now ,if we can only get the GOP to attack!