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.

Armstrong — who previously spent 17 years at Penn — assumed the role of interim president after then-Columbia University President and former Penn professor Nemat “Minouche” Shafik resigned in August.

Katrina Armstrong is leaving the post a week after the university agreed to a list of demands from the White House.

Protests against Columbia University are breaking out after the school agreed to the Trump administration's demands to change its policies to restore federal funding. NBC News' Maya Eaglin reports on reactions from students and alumni from the School of International and Public Affairs.

Columbia University has appointed Claire Shipman, a co-chair of its board of trustees, as acting president of the institution targeted by the Trump administration with major federal funding cuts. Why it matters: President Trump's administration pulled some $400 million in federal grants and contracts from the school over allegations of antisemitism during pro-Palestinian protests on the campus.

The head of Columbia University resigned on Friday following fierce criticism of the Ivy League institution’s decision to cede to President Donald Trump’s demands for reforms. Katrina Armstrong, who was appointed after her predecessor Minouche Shafik stepped down last August,

Among the new changes, Columbia agreed to review its admissions policies, ban protesters from wearing masks, bar demonstrations from academic buildings and to put its Middle East studies department under the supervision of a new senior provost with a mandate to review its leadership and curriculum.

The resignation comes after Columbia caved in to demands from Trump, who claims the school failed to fight antisemitism.

President Minouche Shafik resigned last August in the wake of massive protests that made Columbia the epicenter of student demonstrations over the Gaza war, and that led to a significant police response.