Bernie Sanders ceremoniously swears in Zohran Mamdani at inauguration; Full speech

Bernie Sanders administers public oath of office to Mamdani

Bernie Sanders administers oath as Mamdani is inaugurated as NYC mayor

Bernie Sanders speaks at Zohran Mamdani's inauguration

Bernie Sanders: Mayor Mamdani's ideas are 'not radical'

WATCH: Bernie Sanders Sends Direct Message To NYC's 'Billionaire Class' At Mamdani's Inauguration