I'm amazed that he took his oath on the Constitution. He also launched the CIA's Counter-terrorism Center, btw, and was its first leader.
I would say it's unlikely that he's a Muslim convert because of swearing on the Constitution, except jihadists are allowed to engage in deception (taqiyya).
Have to remember that if he is a Muslim in with the red-green axis, which seems fairly probable, he would be for the global caliphate and against terrorism. Especially if he's with the MB.
I actually saw him once at a different school, when he was CIA director. That was an est. 3 or 4 years ago, but these meetings merge together. I was keeping my ears open to see if I could pick up on his being a Muslim, but he really didn't say anything that suggested it. Back then, though, I might not have recognized it if I heard it. There were a lot of Muslim women in the audience with head scarfs. Hard to tell with the men, they blend in better.