nytimes.com/2020/06/03/opi…
en.wikipedia.org/wiki/Insurrect…
Sending in the troops is what happens when the state governors/legislatures are themselves effectively in revolt and must be put down, when the state government is the enemy.
If it's an op-ed justifying why the Trump administration can force troops on unwilling states, then it's a huge problem.
But if it's "send in the troops", we have a situation that's leading toward a constitutional crisis.