Was New York City Mayor Zohran Mamdani barred from Katz's Deli in New York? No, that's not true: The story originated on a Facebook page known for its satirical content, which carries the warning "Nothing on this page is real." The image supporting the claim is stamped with a warning label that says the same thing.
The claim appeared in a post and image (archived here) by the @Community.news account on Facebook on July 6, 2026. It read:
New York Mayor Zohran Mamdani has been asked not to come back to the famous Katz's Deli on the Lower East Side after he entered the 120-year-old Jewish establishment with a group of pro-Palestine 'Activists.'
'We told him we don't mind them being here,' said Katz's owner, Jusef Barronberg, 'We just ask that they respect everyone and put away their flags and signs.'
The group refused, and Mamdani refused to leave without being served.
'We made him a sandwich for free to get him out of here, then we had the police serve him with a no trespassing notice.'
Barronberg says this is the first time in his 60 years at the restaurant that he's ever seen politics mixed with brisket.
Good to see the owner stood up to the mayors crap
Credit @temp2165
Katz's Delicatessen was officially founded in 1888 on the Lower East Side of New York City, making it approximately 138 years old as of 2026, not 120.
This is what the post looked like on Facebook at the time of writing:

(Image source: post by @Community.news on Facebook.)
The claim originated on the satirical Facebook page America Loves Liberty (archived here) run by Christopher Blair, a self-described liberal with a documented history of creating fake content to trick conservatives into sharing it. The page states: "Nothing on this page is real":

(Image source: America Loves Liberty on Facebook.)
The original post (archived here) appeared on the America Loves Liberty Facebook page on July 5, 2026. It is nearly identical to the version shared by @Community.news:
New York Mayor Zohran Mamdani has been asked not to come back to the famous Katz's Deli on the Lower East Side after he entered the 120-year-old Jewish establishment with a group of pro-Palestine 'Activists.'
'We told him we don't mind them being here,' said Katz's owner, Jusef Barronberg, 'We just ask that they respect everyone and put away their flags and signs.'
The group refused, and Mamdani refused to leave without being served.
'We made him a sandwich for free to get him out of here, then we had the police serve him with a no trespassing notice.'
Barronberg says this is the first time in his 60 years at the restaurant that he's ever seen politics mixed with brisket.
'It's just wrong.'
The image used in both posts was also stamped with a disclaimer that read, "Nothing on this page is real," although it is partially cropped out in the post from @Community.news to read "Is Is Real" (see above). The full label is circled in red below:

(Image source: America Loves Liberty on Facebook.)
News searches
Lead Stories searched Google News (archived here) and Yahoo News (archived here) and did not find any matching reports from credible news outlets using the search terms: "Mamdani," "Katz's Deli" and "New York." No credible outlets have reported the claim.