That is true, say the federal govt had ordered a lockdown. He could actually since we are still in a state of emergency since 9/11, but doing so would anger people and cause them to realize and question why that is so. Maybe Trump even knows corona is dangerous and wanted to lock down the country, he was on conference calls with all the governors. I always remember how Obama definitely ordered occupy wall st crushed but had mayors of cities do it. Because the federal govt stopping protests is against the 1st amendment. The constitution gets broken all the time though. They just have to be careful to cover their ass when they do it. Supreme would rubber stamp anything anyway. Trump had the protests around the whitehouse teargassed for the bible photo op, that will go to supreme court but you already know how that will go. Dismissed. They give people protesting free speech zones, unconstitutional. The fed govt could invoke military powers in an emergency to make people go to lockdown. Kind of like Abe Lincoln halting habeus corpous during a war.