Sen. Thom Tillis, R-N.C., left, and Sen. Richard Burr, R-N.C., walk from a policy luncheon on Capitol Hill in Washington in 2015.
Sen. Thom Tillis, R-N.C., left, and Sen. Richard Burr, R-N.C., walk from a policy luncheon on Capitol Hill in Washington in 2015. Carolyn Kaster AP
Sen. Thom Tillis, R-N.C., left, and Sen. Richard Burr, R-N.C., walk from a policy luncheon on Capitol Hill in Washington in 2015. Carolyn Kaster AP