If I know the answer I'll tell you the answer, and if I don't I'll just respond cleverly.
With the press there is no "off the record.
Oh, Lord. I didn't mean to say anything quotable.
When starting at the bottom, be willing to learn from those at the top.
Let your family, staff, and friends know that you're still the same person, despite all the publicity and notoriety that accompanies your position.
The price of being close to the President is delivering bad news. You fail him if you don't tell him the truth. Others won't do it.