Primary showdown: Polls close in Tennessee as conservative firebrand eyes governor's office

The polls have closed in Tennessee as conservative firebrand Sen. Marsha Blackburn aims to change her work address from Washington D.C., to Nashville. The former longtime congresswoman and two-term senator with a robust national profile thanks to her regular cable news appearances is considered the front-runner in Thursday's Republican gubernatorial primary , in the race to succeed term-limited GOP Gov. Bill Lee. The Republican face-off for governor of Tennessee, where Democrats haven't won a gu