NEW: Email reveals DHS Secretary Mayorkas was alerted by DHS' top public affairs official that the "whipping" narrative behind horseback BP photos wasn't true, but at a WH press conference 2.5 hours later, he didn't refute that narrative, instead calling the images "horrifying". pic.twitter.com/Qyfy2NBkNo

— Bill Melugin (@BillMelugin_) October 12, 2022