WASHINGTON — The U.S. Justice Department placed two prosecutors on leave on Wednesday, hours after they referred to Trump supporters who stormed the Capitol on January 6, 2021, as “a mob of rioters” in a sentencing memo, said four people familiar with the matter. Assistant U.S. Attorneys Samuel White and Carlos Valdivia were placed on administrative leave and locked out of their government devices, one day before their scheduled appearance in federal court on Thursday for Taylor Taranto ‘s