The Democratic Senatorial Campaign Committee is releasing a new television ad in North Carolina on Thursday targeting Republican Thom Tillis ' ties to billionaire conservatives Charles and David Koch . The new 30-second ad will run statewide , and is part of a $ 100 million for the DSCC . Sen. Mike Hagan is locked in a close race for reelection against GOP challenger Thom Tillis . The Koch Brothers have been a constant presence in the Tar - State contest messaging .
The new 30-second ad will run statewide , and is part of a $ 100 million for the DSCC . Sen. Mike Hagan is locked in a close race for reelection against GOP challenger Thom Tillis . The Koch Brothers have been a constant presence in the Tar - State contest messaging .