KINGSPORT — Tennessee House Speaker Beth Harwell thinks she’ll have enough campaign cash to defeat three potential self-funders in the 2018 GOP gubernatorial primary. “This will be an expensive race, unfortunately,” Harwell, R-Nashville, said during a talk to the Kingsport Kiwanis Club on Friday. “But I can tell you that first I know we will be able to raise sufficient monies to get our message out.