Newark Mayor Cory Booker widened Conan O’Brien’s from Newark to all of New Jersey in a YouTube video posted on Thursday afternoon.

The “feud” began when The Tonight Show host blasted Newark while talking about the city’s proposed new healthcare plan. As a result of the insult, a livid Booker banned Conan from Newark International Airport, slapping the comedian on the facility’s “No-Fly List.” Conan responded by banning the mayor from L.A.’s Burbank Airport, quipping: “There are other ways to get to your city. I can navigate the nation’s sewer system because everyone knows all sewers lead to Newark.”

Mayor Booker’s response is to increase Conan’s ban to include the entire state of New Jersey and Newark’s sister cities across the world.