I meant to link this piece awhile back by a fairly accomplished writer who did it for a period. Very good read.
Michael Hastings of Newsweek, who covered the Giuliani campaign among other recent candidates and stories, risks his career with a tell-us-how-you-really-feel tome in GQ:
In my case, it was easy to despise Rudy. I’d spent two years covering the war in Iraq. I had a brother who was currently deployed there as an infantry platoon leader, and I had Iraqi friends who were now living as refugees. To listen to a man so casually invoke violence and warfare—a man who’d never set foot in Iraq or in any war zone—was troubling indeed. I wasn’t alone in the press corps. I don’t think I spoke to another journalist who ever said one good thing about the man. What did we say? We made fun of his divorces and his wives, that he’d married a second cousin, that he surrounded himself with corrupt cronies, that he had a piss-poor relationship with his children, etc. We talked about his megalomania and his cynical exploitation of September 11.
Still, I ate meals with staffers and campaign managers. I tried to say things that would make me appear sympathetic to Rudy while not technically lying. (“Wow, he sure seems popular.” “I was in New York on 9/11, and I have to be honest with you, I was glad Rudy was in charge.”) I tried to stay out of any discussion about issues and to just repeat the mantra to myself: I am here to observe and record, observe and record.