As I already stated a couple days ago on another thread... here it is 5 or some odd hours ago!
Not sure how creditable POLITICO is though.
First National Emergency (Martial Law)
Second Shut Down Cities/States
Third Suspend the Constitution
Fourth Roll in the National Guard/Armed Forces...
etc etc.
I'm pretty sure they'll try to sell it in a similar way they tried to sell the Patriot Act (if it passes) - "don't worry, it will be repealed after the crisis is over" (or words to that effect)