A new pro-Hagan ad buy by Democratic super PAC Senate Majority takes a swipe at GOP contender Thom Tillis.
Candidates seeking the North Carolina seat in the U.S. Senate up for grabs in 2014 may want to keep a low profile over the next year.
Three Republican challengers hope to unseat Democratic incumbent U.S. Sen. Kay Hagan as outside groups begin to pour money into the race more than a year before Election Day.
State Sen. Pete Brunstetter had been considering a run for the Republican nomination to challenge Democratic U.S. Sen. Kay Hagan.
House Speaker Thom Tillis and Senate leader Phil Berger, both Republicans who are weighing U.S. Senate bids, are not well-known among potential voters.