Could Obama have Trump arrested if he starts a war with China before January 20th? Lets say he started talking about blowing up three Georges if they don't respect us on trade and China reacted with declaring war on the United states. Could Obama have him arrested for doing so before January 20th???

I think Obama would be justified in having the SS lock him in a room while he(obama) tried to make peace. This has never been needed before because most presidents elect respect the current president.