National labor leaders marched outside the FBI and DOJ headquarters. The demonstration is to show solidarity with California union leader David Huerta. Huerta, president of California’s Service Employees International Union (SEIU), was tackled and arrested Friday outside a garment warehouse by federal agents serving a warrant. The confrontation, captured on video, shows Huerta being knocked down and restrained. He remains in custody, charged with felony obstruction of justice. Marchers temporarily blocked traffic on Pennsylvania Avenue as they moved between the DOJ and FBI buildings, chanting "Free David Now!" and holding signs demanding the release of Huerta, who was due in California court late Monday.