In a statement to ABC News, a Department of Homeland Security spokesperson said: "Rumeysa Ozturk is a Turkish national and Tufts University graduate student, granted the privilege to be in this country on a visa. DHS and ICE investigations found Ozturk engaged in activities in support of Hamas, a foreign terrorist organization that relishes the killing of Americans. A visa is a privilege not a right. Glorifying and supporting terrorists who kill Americans is grounds for visa issuance to be terminated. This is commonsense security."
https://abcnews.go.com/US/tufts-phd-student-visa-arrested-im...
UPDATE: Her essay didn't even support Hamas, here's the essay: https://www.tuftsdaily.com/article/2024/03/4ftk27sm6jkj