Maybe not, according to this article :
"A senior House Democratic lawmaker was skeptical on Sunday of a Bush administration idea to obtain the authority to delay the November presidential election in case of an attack by al Qaeda.
"U.S. counterterrorism officials are looking at an emergency proposal on the legal steps needed to postpone the presidential election in case of such an attack, Newsweek reported on Sunday."
More commentary here.
(Thanks to Bill Edmundson [Law & Phil, Georgia State] for the pointers.)
UPDATE: I'm glad to see one important, conservative site has come out against this crazy proposal.