Valerie Jarrett was assistant to President Obama and confidant. She is Muslim and said to be related in some way to the head of the Muslim Brotherhood who may still be jailed in Cairo. (a reason Obama hates General Sisi so much??) I also read at one time that Obama’s grandfather, a Kenyan tribal leader was a Muslim of the same sect as Muslim Brotherhood. MB has wielded much power in Washington in recent years. Of all of Obama’s crew running Biden’s WH, I don’t know if Jarrett in one of them or not.