Columbia University has announced it will use a controversial definition of antisemitism on campus, approved by the Trump administration. Arno Rosenfeld, enterprise reporter at the Forward and author of the Antisemitism Decoded newsletter, talks about the new definition and why some groups don't support it. Plus, Katie J.M. Baker, national investigative correspondent for The New York Times, discusses Project Esther, a project of the conservative Heritage Foundation that aims to suppress pro-Palestinian activism and what it labels antisemitism across America.