Sean believes the spiel and I believe he's sincere when he says he's a conservative, but he doesn't own the mic and is beholden to those who do. Much more so than Rush, due to his stature, or Levin, who is a force of nature all by himself.
The way Rubio and, to a lesser degree, Ryan have been taken out with this issue has been instructive.
It helps to remove as many personal biases as you can in order to see the players. They use them to hide.
Not just any ordinary conservative, mind you. Hannity is a "Reagan Conservative". Just ask him.