He will NOT take away Rush's audience because he appeals to a different demographic. Real Rush fans couldn't listen to Huck for more than a few minutes. He'll create his own small audience of ideologically squishy moderate-ish “independents”. They can all high-five each other with their reach across the aisle less-confrontational more-conversational conversation.
Good luck Huck...You're gonna need it.
He’ll be the next “Pumpkin Spice” coffee of talk radio [/obscure Starbucks seasonal coffee reference].
He appeals to the same demographic who find Bill O’Reilly appealing. Huckabee won’t last long up against Rush.