Bill Maher unloaded on Dr. Ben Carson on Friday, calling him “half brilliant brain surgeon, half Tea Party dumbass.”

“Dr. Ben Carson is the director of pediatric neurosurgery at Johns Hopkins and the first doctor to separate conjoined twins at the head,” Maher said on his HBO show “Real Time with Bill Maher.” “And he believes the Earth is 6,000 years old, and that homosexuality is akin to bestiality, and that the Bible calls for a flat fax. He’s half brilliant brain surgeon, half Tea Party dumbass. He doesn’t just operate on conjoined twins, he is one.”

“He’s also someone who many Republicans are encouraging to run for president in 2016, and why not?” he continued. “There’s no more attractive figure in the Republican Party these days than an anti-intellectual with an advanced degree. People like Antonin Scalia, Ted Cruz and Bobby Jindal who are accomplished scholars on the outside, and on the inside a creamy layer of Michele Bachmann.”

Watch below, via NewsBusters: