Dana Carvey’s John Bolton Is A Shampoo-Swilling, ’Stache-Stroking Nutball

“Late Show” host Stephen Colbert said many people are worried that President Donald Trump appointed an “unstable lunatic” when he named John Bolton his new national security advisor.

And to refute that point Wednesday night, he brought on ... John Bolton himself.

Actually, it was comic Dana Carvey doing a frightening impression of Bolton as the unstable lunatic Colbert warned of:

Carvey’s version of Bolton drinks shampoo, makes wild threats and talks to his mustache ... which grows throughout the segment:

See the full interview in the clip above.