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Republican Senator Thom Tillis faces tough reelection in North Carolina

Republican Senator Thom Tillis faces tough reelection in North Carolina

A portion of the Republican National Convention is set to take place in Charlotte, North Carolina. Meanwhile, the state's incumbent Republican Senator Thom Tillis is trailing behind his Democratic challenger Cal Cunningham. Nick Ochsner, investigative executive producer at CBS affiliate WBTV, joins CBSN's Lana Zak with the latest.