Acting Attorney General Matt Whitaker made a surprise appearance at the trial of drug lord Joaquin “El Chapo” Guzman on Monday, as jurors began their deliberations.

Whitaker joined US Attorney Richard Donoghue in Brooklyn federal court, where he shook hands with prosecutors in the case.

His appearance came just after jurors in the case retired to begin discussing the charges against Guzman at the end of the months-long trial.