Blackburn, Rose Face Off in Tennessee GOP Governor Primary: Tennessee Republicans head to the polls on Thursday to choose their nominee for governor in a tightening race between ​two of President Donald Trump’s closest allies in Congress: Sen. Marsha Blackburn and Rep. John Rose. Blackburn, 74, and Rose, 61, ⁠are running for the … #TennesseeGOP #GOPPrimary #MarshaBlackburn #JohnRose #TennesseePolitics