I have little doubt that Trump plans to use the military to crush dissent in the blue states, probably starting in California. Crime and illegal immigration (to Trump, a single phenomenon) will be the pretext. But when will this occur? Will it happen right away, or will he decide to ratchet up the pressure bit by bit to make the outcome seem inevitable and more acceptable?
Trump isn’t known for his patience. He’s an old man in a hurry. He wants his vengeance to be served piping hot. My best guess is that the crisis will come in the first few months of his administration, when the public is still convinced he has some sort of mandate for revolutionary change.