Columbia University's interim president, Katrina A. Armstrong, has decided to step down following an agreement with the Trump administration regarding federal funding, after stepping in during a period of significant challenges and campus unrest. David Greenwald, chair of the Board of Trustees, praised Armstrong for her leadership during a time of uncertainty, particularly amid protests related to the conflict in Gaza. Claire Shipman, co-chair of the Board of Trustees, will take over as acting president immediately, ensuring continuity until a permanent president is appointed.