Let's not pretend he's being pushed for Prez because of his Senate tenure (which was lackluster) or his record as Watergate counsel (we're way, way past the time when anybody gets a boost from what he did in Watergate, especially if he's a Republican). Fred is a recognizable face from TV and movies, that's pretty much it. I know this is driven by nostalgia for Ronald Reagan, but at least Reagan was a real film actor. Fred Thompson is like human furniture; he just plays himself over and over again.
Also, if Fred Thompson were POTUS then Dick Wolf ought to be Emperor of the Entire Known Universe.