Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. North Carolina Senate Race Upended by Sexting, Virus Diagnosis Associated Press RALEIGH, NORTH CAROLINA - North Carolina's intensively competitive and expensive U.S. Senate race has been upended by personal and health disruptions that sent uncertainty through the campaigns and an electorate already casting ballots. Democratic nominee Cal Cunningham acknowledged and apologized for exchanging sexually suggestive text messages with a woman who's not his wife, but he said he wouldn't drop out of the race. And just a few hours earlier Friday evening, his opponent, Republican Senator Thom Tillis, announced he had tested positive for COVID-19. While the first-term senator said he had no symptoms, the news forced Tillis to cancel in-person events, and several members of his campaign staff headed into quarantine. "It's chaos," David McLennan, a political science professor at Meredith College in Raleigh, said in a Saturday interview. In the text message exchanges, Cunningham tells the woman he wants to kiss her and she says she wants to spend the night with him. The messages were first reported by the website NationalFile.com. "I have hurt my family, disappointed my friends, and am deeply sorry. The first step in repairing those relationships is taking complete responsibility, which I do," Cunningham said in his statement late Friday. Staying to fight Cunningham, who is married with two teenage children, added he's staying in the Senate race: "I will continue to work to earn the opportunity to fight for the people of our state." The race is the nation's most expensive Senate campaign and considered key to determining the power balance in the chamber. Democrats need to gain four seats in November to take control. Voting has been under way for four weeks in North Carolina, and 341,000 completed mail-in absentee ballots have been accepted and will be counted. Early in-person voting begins October 15. McLennan and Gary Pearce, a longtime state Democratic consultant, said it's unclear how much of an effect Cunningham's text messages will have on the election. "Most Democrats are really scared by it, but then you wonder: Has everything changed in the age of [President Donald] Trump?" Pearce said, adding the electorate's increased polarization since 2016 could lead many Democrats to stick with Cunningham simply because the party's victory is paramount. Timing A spokeswoman for Cunningham's campaign, Rachel Petri, confirmed the authenticity of the text messages on Saturday. It's unclear when the messages were sent, but at one point Cunningham says he's "nervous about the next 100 days," which could be a reference to the Senate election. One hundred days before the election would be July 26. An email trying to reach Guzman Todd at the California-based communications firm that lists her as an employee and voice messages left with what public records indicate are her phone numbers weren't returned Saturday. Public records show she had a Raleigh residence briefly until 2015. Guzman Todd is married to someone who has served in the U.S. Army, according to the NationalFile.com report. Cunningham, 47, is an attorney and Iraq War veteran who still serves as an officer in the U.S. Army Reserve. He served one term in the state Senate in the early 2000s and lost a Democratic primary runoff for U.S. Senate in 2010. .