A congressional committee probing campus antisemitism is expanding its investigation to include Columbia University and demanding the Ivy League school turn over a trove of documents to lawmakers.

In a 16-page letter delivered to Columbia leaders Monday afternoon, Rep. Virginia Foxx, the Republican chairwoman of the House Education and Workforce Committee, informed the university her panel is investigating Columbia’s “failure to protect Jewish students.”

“We have grave concerns regarding the inadequacy of Columbia’s response to antisemitism on its campus,” Foxx wrote in the letter, citing an “environment of pervasive antisemitism” that goes back more than two decades.