MSNBC’s Joe Scarborough explained why special counsel Robert Mueller isn’t afraid of President Donald Trump — no matter how hard he huffs and puffs.

His colleague Chris Hayes reported Thursday night that Mueller has a “dead man switch” that would trigger indictments in the event that he was fired, and the “Morning Joe” host said that explains much of the president’s recent erratic behavior.

“Donald Trump has been freaking out so badly this week, since Sunday, and all of these crazy tweets and talking about ‘spygate’ — like, he’s losing it,” Scarborough said. “On the other side, you have Bob Mueller being Bob Mueller.”

Scarborough said Mueller and his boss, deputy attorney general Rod Rosenstein, were holding all the cards.

“Rod Rosenstein and Bob Mueller are acting like men or women sitting around a table in a poker match that are getting insulted and they’re looking at their hands and they have four aces,” he said. “Do you pick that up with Rosenstein? Every time he goes out, he’s just sitting there smiling, and last night I heard on Chris Hayes, we haven’t confirmed it yet, somebody said on Chris Hayes, they’ve got this kill trigger. You start firing us, we just press the button and the indictments start getting emailed out.”

“Are they holding four aces already?” Scarborough added. “Are they not fearful of Donald Trump firing them? Do they have this all planned out, do you think? That if he does start firing them, they press the button and all the indictments start getting sent out?”