First of all, there is no provision for nationwide "martial law" in either the Constitution or the US Code.
Second, the chusing of Electors for President and Vice President is a sole power of 50 State Legislatures plus the three electors that Congress awarded itself with Amendment XXIII). There is no "election" to postpone, or, to put it another way, if voting by morons and beggars was somehow not to occur, the Electoral College would simply be appointed instead by the State Legislatures.
With all due respect, I am not sure why you responded to me...I did not post that...I merely wanted to hear the interview. Perhaps you should repost to the original poster?