Former President Barack Obama tore into his successor Donald Trump in private as an “idiot” and a “liar,” a secret diary has revealed.

Obama’s frank thoughts on Trump, and on his son Donald Trump Jr., were recorded by Dr. Tony Fauci in a diary he kept, which was spitefully leaked by anti-vaccine fanatic Robert F. Kennedy Jr.

According to Fauci’s diary entry, Obama reassured him that Trump Jr. is “a f—ing moron” before apologizing for using crude language.

“But [Obama] went on to say that Donald Trump was a hopeless idiot who was a pathologic liar,” Fauci added.