The footage is of Maria Bakalova -- who plays Borat's daughter in the newly released sequel -- and shows her getting a tour of the White House press briefing room by OANN reporter Chanel Rion. It appears Rion, a regular member of the WH Press Corps, and her outlet were duped last month into getting Maria onto the White House grounds somehow.
There's also footage of Maria within feet of POTUS at a reception for Trump supporters back in February in Phoenix -- and there she's seen shaking Donald Trump Jr.'s hand. She was blonde at that time.
BTW ... Maria gaining access into the White House is NOT in the newly-released film, but it calls into serious question the security measures in place at 1600 Penn. Sacha claims Maria wasn't checked for a credential, nor did she have a COVID-19 test.