Some say the salutation should be "Dear Mr. President", others say it should be "Dear Mr. Obama", others again "Dear President Obama" or "Dear President Barack Obama". Ugh, WTF. Does anyone know the protocol for this?
Plus, obviously an answer would be nice but I'm not expecting one, and I'm aware that letters are read by staff. My instinct is that it would be rude to include an S.A.E. - is that right? Or should I include one?
ETA: It occurs to me to mention that yes, I do know the actual address.