Tennessee holds primaries on Thursday for gubernatorial nominees and candidates in nine newly redrawn congressional districts. Sen. Marsha Blackburn, first elected to the Senate in 2018, faces primary challengers Rep. John Rose and Rep. Monty Fritts, while five Democrats appear on the November ballot. The Supreme Court narrowed Section 2 of the Voting Rights Act earlier this year, after which state lawmakers dissolved a majority-Black district in the Memphis area and adjusted all nine districts to favor Republicans.