Columbia students confront anti-Israel protesters who stormed classroom with antisemitic flyers - Columbia investigates pro-Gaza protesters who crashed History of Modern Israel class - Pro-Israel professor at Columbia barred from campus after harassing and intimidating other employees - Pro-Israel Columbia professor barred from campus - Columbia Welcomes Students Back to Campus With Arrests - 3 Columbia deans resign over texts that 'touched on ... antisemitic tropes' - Columbia President Resigns After Months of Turmoil on Campus - Three Columbia Deans Who Sent Texts Evoking 'Antisemitic Tropes' Are Resigning - Columbia deans resign over texts officials say contained antisemitic tropes - Three Columbia deans ousted over ' disturbing anti-Semitic tropes'