Columbia University’s interim president resigned from her position at the embattled Ivy League Friday night, just days after she told the Trump administration she would implement a mask ban — while privately promising faculty she would not.

Katrina Armstrong will be stepping down "effective immediately" as Columbia University's interim president, the school said on Friday. Armstrong was announced as the interim president of the New York City university in August 2024 after then-President Minouche Shafik announced her immediate resignation.