Though not hosting his primetime program, Fox News host Bill O’Reilly called into “The O’Reilly Factor” to deliver a scathing indictment of New York City Mayor Bill de Blasio, saying de Blasio should resign, and has “disgraced” the NYC mayoral office.

O’Reilly also told guest host Greg Gutfeld Monday night that the relatively new mayor is “incompetent,” adding that de Blasio has espoused an “anti-police” sentiment his entire career.

O’REILLY: “Bill de Blasio, as I said, is incompetent. He was elected in an election in New York City that few people voted. He was a machine politician, and he is an anti-police individual. Now he is in trouble. Now he is trying to backtrack. But he has been anti-police his whole career. Who is his best friend? Al Sharpton. Al Sharpton. A racial provocateur, an anti-cop individual. He is his best friend. That says it all.”

“De Blasio is proud that he told his teenage son that he may face ‘dangers’ when interacting with the NYPD. What type of responsible father tells that to his son? Then, after witnessing, because it’s on videotape, two police lieutenants get beaten by a mob, the mayor of New York City says it was an alleged beating. That insulted every single — every officer, all 35,000 NYPD who were insulted. Alleged? You saw it with your own eyes you pinhead! Once he said that, that was the end. He lost the police department, and then when he went to the hospital over the weekend where two police officers are being treated, police officers turned their backs on Bill de Blasio, the mayor of New York City. Good for them! Good for them.”

“This is an individual who should resign today. Today. He cannot run this city, he’s the lost control of the police department and their respect. They will never come back no matter what he says, because he sided with the protesters. That’s what he did… He has disgraced the officer of the mayor of New York City. He should resign.”