While Madison Square Garden had prepared itself for the German Bund, many around New York City considered the Nazi sect less welcome in their city. About 100,000 anti-Nazi protesters gathered around the arena in protest of the Bund, carrying signs stating "Smash Anti-Semitism" and "Drive the Nazis Out of New York".[6] A total of three attempts were made to break the arm-linking lines of police, the first of these, a group of World War One Veterans, wrapped in Stars and Stripes, were held off by police on mounted horseback, the next, a "burly man carrying an American flag" and finally, a Trotskyist group known as the Socialist Workers Party, who like those before, had their efforts halted by police.[4]

I love that the lone burly man carrying an American flag was disruptive enough in attempting to get through the police line to warrant mention.