There’s no greater demonstration that the social justice movement has gripped the Democratic Party than the first presidential primary debate on Wednesday.

Candidates Cory Booker, senator from New Jersey; Beto O’Rourke, former representative from Texas; and Julián Castro, former Housing and Urban Development secretary, took turns speaking Spanish. NBC moderator José Díaz-Balart asked questions in Spanish. Marianne Williamson, who will be at Thursday night’s debate, tweeted that she felt she now needed to learn Spanish.