As a reflection of the age in which we live, it is no longer possible to tell the difference between real stories and the mockery of The Onion.
This one is real.
They basically would only be allowed to ask him how his golf game is going.
Trump will not answer any questions about obstruction of justice. Needless to say, that’s why they want to talk to him in the first place. There is (to my knowledge) no evidence that candidate Trump colluded directly with Russian agents, but there was the letter he dictated (and initially denied dictating through Sarah Sanders), his pressure on Sessions not to recuse himself, as well as the Comey firing and his stated reasons for doing so.