The President has the authority to invoke it by declaring a national security emergency. Look it up.
It was, specifically, Democrat governors and mayors who allowed the burning of their cities w/o arrests or any police action to stop it. Seattle's mayor allowed the seizure of a section of the city by rioters who 'ruled' it for weeks unopposed.
It was, specifically, Democrat governors whose unnecessary draconian lockdowns have driven and are driving businesses into oblivion.
Not Trump.
Democrat officials.
With the mountain of evidence he has of an election coup, he can declare it, freeze everything, and sort it all out afterward.
Why do you think Pelosi et al want him out NOW instead of just waiting until the 20th? They're soiling their diapers, that's why.