What you need, I think, is someone who has the ability to excite the Republican base and expand the party. You can’t have someone who is so moderate that they think they can get the moderate vote but can’t excite the Republican base.
I think that is the biggest obstacle he has to overcome, is that being a moderate in a conservative party is difficult. When you refer to conservatives in the third person, as he did recently, that makes it even more difficult I think to connect with conservatives. When the first person you call when you decide to run is Hillary Clinton, that doesn’t really endear you to the grassroots.