Cornell University's Young Democratic Socialists of America lead "from the river to the sea" chant before Rep Alexandria Ocasio-Cortez takes stage.
https://www.foxnews.com/politics/aoc-ivy-league-warmup-act-leads-democratic-socialists-notorious-anti-israel-chant
https://www.foxnews.com/politics/aoc-ivy-league-warmup-act-leads-democratic-socialists-notorious-anti-israel-chant