I have NO proof of who the leaker might be, but I will tell you who I think it is. I think it is the Senator who wants to be President, but cant win as a Democrat, and wont win as a Republican either, but intends to run as an Independent on the premise that both sides are dysfunctional. John McCain. Well, stranger things have happened. If McCain did talk to the NYT, all I can say is, not only is he certifiably crazy, but he's a lot dumber than I thought.
That said, unless the media is wrong, and McCain was briefed on the program, then he is not the leak.
McCain would have to have gotten the information from somewhere, which means the actual leak is still at large. He's just the link between the New York Times and the actual leak in the program.
John McCain has never in his life demonstrated any form of intellect whatsoever, unless you regard intellect as being able to leverage family, friends and media connections to avoid responsibility for errors that would keep others permanently unemployable.
I don't believe there is a Senator in Washington who DIDNT know about this program and others.