No, sorry, actually this is a Nazi rally held at Madison Square Garden on May 17, 1934. Ahem, okay, they called themselves the Friends of New Germany, swastikas and jackbooted thugs notwithstanding. From the Daily News Archives.

Recognize anybody?  Maybe that crazy uncle who never liked to talk about what he did for the war effort?  There were lots of New Yorkers of German heritage, so they might have been there… waving.  How many of them years later said they showed up for a Knicks game and a Nazi rally broke out?  Who knew that could happen?

Is that Fred Trump (nee Drumpf) in the front row?  Hm.