Donald Trump is telling his supporters that he will be arrested on Tuesday and that they should demonstrate on his behalf and send him money. I think he will be arrested at some point, or at least indicted, and it may be this Tuesday but I wouldn't assume that. I think Donald Trump loves nothing more in this world than for his fans to demonstrate on his behalf and to send him money and that he wouldn't miss an opportunity to get some of that going.
And if he isn't arrested on Tuesday, he can say, "They backed down because of the enormous wave of support shown for me by true Americans who want me back in the Oval Office!" The guy is real good at this kind of thing.