President Trump does not have the authority to order his own arrest. Any arrest would have to be carried out by law enforcement officials, who are not under the President’s control. Therefore, it is highly unlikely that he will be arrested on Tuesday.
If President Trump does ask his supporters to protest, it is important for them to make sure to do so peacefully and within the bounds of the law. Any type of violence or unlawful behavior will not be tolerated, and could lead to serious consequences.