Appearing in a panel discussion with MSNBC host Laurence O'Donnell, conservative David Frum said President Donad Trump's threat to fire special counsel Robert Mueller would be a tacit admission that he is guilty.

With Trump ally Newt Gingrich calling for the firing of Mueller, Frum said Gingrich might enjoy that type of "apocalyptic" governance but it would be devastating to the White House.

"The independent counsel law was allowed to lapse last century because there were doubts of constitutionality," Frum explained. "The special counsel is now under the president because people argued that the president could be trusted to investigate himself. If that turns out not to be true, then you are into political remedies of the most dire kind."

"Maybe Newt Gingrich would welcome that because it's kind of an apocalyptic scenario and he enjoys those," Frum continued. "I don't want to sound like I have the limited imagination you condemn, but if Trump fires Robert Mueller he might as well hire a sky writer to trace in smoke over the White House, 'I am super guilty.'"

Watch the video below via MSNBC: