Bolton, who worked for Trump during his first term, said this is more proof that his old boss isn't fit for the Oval Office.

Former national security adviser John Bolton said Monday that President Donald Trump’s latest comments on the Russia-Ukraine war show his brain is going to “mush.” CNN’s Kaitlan Collins asked Bolton about Trump’s refusal to call Russian leader Vladimir Putin a “dictator” during joint comments with French President Emmanuel Macron on Monday.

Former national security adviser John Bolton said President Trump’s mind is “full of mush” as he navigates international affairs and ending the Russia-Ukraine war. Bolton joined CNN’s “The Source” Monday evening,