Mamdani: If anyone can show a nation betrayed by Donald Trump how to defeat him, it is the city that gave rise to him. And if there is any way to terrify a despot, it is by dismantling the very conditions that allowed him to accumulate power. This is not only how we stop Trump, it's how we stop the next one. So Donald Trump, since I know you're watching, I have four words for you. Turn the volume up.

[Mamdani will regret that challenge]

Mamdani: New York will remain a city of immigrants, a city built by immigrants, powered by immigrants, and as of tonight, led by an immigrant. So hear me, President Trump when I say this. To get to any of us, you will have to get through all of us.

[challenge accepted]