U.S. President Donald Trump threatened to strip Harvard of its tax-exempt status on Tuesday and said the university should apologize, a day after it rejected what it called unlawful demands to overhaul academic programs or lose federal grants.

Beginning with Columbia University, the Trump administration has rebuked universities across the country over their handling of the pro-Palestinian student protest movement that roiled campuses last year following the 2023 Hamas-led attack inside Israel and the subsequent Israeli attacks on Gaza.

Trump has called the protests anti-American and antisemitic, accused universities of peddling Marxism and "radical left" ideology, and promised to end federal grants and contracts to universities that do not agree to his administration's demands.