My only question is what is going to be the triggering event. NSPD 51 suspends the elections for any crisis in the world, including economical. You have been warned.
Signed on July 01, 2016- Executive Order -- United States Policy on Pre- and Post-Strike Measures to Address Civilian Casualties in U.S. Operations Involving the Use of Force
Here is a great article by Susan Duclos explaining the breakdown of the new martial law preparations.