Since Michael Steele is now the head of the Republican party, I thought this might be relevant. This summer he spoke at the WV Republican convention (where the FairTax was added to the platform :)). On the way to the convention, I happened to catch a replay of Hannity and Michael was the guest. They were arguing with Kirstin to convince her that "corporations don't pay one penney in taxes".
After Michael's speech, I approached him and told him I had heard his Hannity tape on corporate taxes. He then went into a several minute diatribe on why it was true. At the end, I asked him: "Why do you support a flat income tax that continues that myth over the FairTax that ends corporate taxes altogether?" Caught off guard, he told me how wonderful the FairTax was. I then asked him why so many Republicans didn't seem to agree with him. His answer was that they just didn't understand it.
Now that he is the leader of the party, someone needs to ask him...or challenge Hannity (where he is often a guest) to ask him, what he is going to do about that lack of understanding.