they agree that, since the results are basically steady since October, the take away fact is that the electoral difficulties are about the Democratic party, particularly with regard to national defense. I think that Instapundit is closer to the more when he writes
It seems to me that the best hope for the Democrats is for Bush to be so successful at foreign affairs and national security that by 2008 nobody cares anymore.
the problem for the Democratic Party is that their weakness on national defense is directly related to their Trans National ideology. While the basic sympathy for foreign enemies of the USA is there (because those enemies oppose the same distinctive features of the USA as the Modern American left), I think it goes deeper. To assert the right for The USA to defend itself instead of feeding that to the UN calls in to question the same at the individual level, i.e. creates doubt about the expanding nanny state. A foreign policy stance of American exceptionalism strikes directly at the MALs domestic policies and therefore can not be tolerated.