He could certainly see to it that they are all arrested but we have dirty prosecutors who can throw the case by over charging, suppressing evidence , or misconduct. Doubly jeopardy would be attached and they all walk free forever. We have corrupt / activist Judges who could control evidence and rulings that allow them to walk free. We have big money funding protests/ riots that could kill many Americans on a moments notice. We have the potential for Country wide chaos that would leave us stretched thin and susceptible to invasion. The list of things needed to secure success is longer than I could imagine but these area few.