Newsweek has reporters in each campaign team. They get more access to see and hear than the rest of the press corps, on condition they do not reveal anything until after the election.
Sample: The debates unnerved both [Obama and McCain]. When he was preparing for them during the Democratic primaries, Obama was recorded saying, "I don't consider this to be a good format for me, which makes me more cautious. I often find myself trapped by the questions and thinking to myself, 'You know, this is a stupid question, but let me … answer it.' So when [NBC anchor] Brian Williams is asking me about what's a personal thing that you've done [that's green], and I say, you know, 'Well, I planted a bunch of trees.' And he says, 'I'm talking about personal.' What I'm thinking in my head is, 'Well, the truth is, Brian, we can't solve global warming because I fucking changed light bulbs in my house. It's because of something collective'."
"The Clinton campaign blew through cash: fancy hotels like the Bellagio in Las Vegas and the Four Seasons everywhere; thousands of dollars on flowers and valet parking; and one memorable $100,000 grocery bill at a Des Moines supermarket. Hillary never spent a night in a motel in rural Iowa if she could possibly avoid it. She preferred to overnight in the Presidential Suite in the Des Moines Embassy Suites and to fly alone in private jets, without the press or staff."