Former Vice President Joe Biden slammed President Trump in a new op-ed, accusing the president of misunderstanding and misrepresenting American values in a way no president has done since the Jim Crow era.

In an op-ed for the New York Times published Thursday, Biden criticized the president’s treatment of U.S. allies like Germany, his comments on the violence in Charlottesville, Va., and the administration’s announcement that it will rescind Deferred Action for Childhood Arrivals.