I don’t think it’s really fair to say that Fox has been especially hard on Fred Thompson. It was Fox that first began reporting on him as a potential presidential candidate in early March; it was on Fox with Chris Wallace that Thompson publicly floated that he was thinking about running, triggering the initial burst of Fred-mania; Hannity has repeatedly offered Thompson an oppourtunity to sit down for softball interviews, including after a Republican debate, at which point Thompson announced the launch of I’mWithFred. If Fox seems more negative now, it’s just because his delayed entrance into the race has frustrated a lot of people, and his decision to skip the NH debate in favor of appearing on Leno, has generated controversy. I’m sure once the campaign gets underway, and if he’s performing well, he’ll be treated to plenty of adoring stories by Fox.