How many crew does a P-8 operate with? According to Reuters, Iran says it refrained from shooting down U.S. plane with 35 on board. The article goes onto say the aircraft was a P-8 Poseidon with 35 on board:


  Iran refrained from shooting down a U.S. plane with 35 people on board
  that was accompanying the downed drone in the Gulf, a Revolutionary
  Guards commander said on Friday...
  
  Amirali Hajizadeh, head of the Revolutionary Guards aerospace
  division, was quoted as saying by Tasnim news agency: “With the U.S.
  drone in the region there was also an American P-8 plane with 35
  people on board. This plane also entered our airspace and we could
  have shot it down, but we did not.”


I thought the P-8 had a crew of about 12 or so. I thought two or three were flight crew, and the remainder were technicians working with the electronic warfare packages.

Is 35 an accurate number for the P-8?
This diagram clearly shows it would be almost impossible to fit nine crew plus an additional twenty-six people in the aircraft. There are no seats for the additional twenty-six. At most you can fit two additional people in the observer seats behind the power distribution packs. The additional seats in the middle are for crew only during takeoff and landing. The aft cabin only has one seat for the mission planning workstation, and that's one of the nine crew seats.