Rep. Blackburn announces run for Corker's U.S. Senate seat

U.S. Rep. Marsha Blackburn, R-Tenn., is entering the 2018 U.S. Senate race to replace retiring Sen. Bob Corker, ending a week's worth of speculation and immediately catapulting her to front-runner status as others consider launching their own bids.
Published: 12:20 PM EDT October 5, 2017