SALISBURY, N.C. – Regardless of who wins, the North Carolina Senate race will go down as the most expensive, likely ugliest contest of the 2014 midterms, with more than $100 million spent and more than 90,000 ads – most of them attacks – aired across the state. Democrat Kay Hagan is fighting for a second term in the Senate. Six years ago, she famously beat Elizabeth Dole to steal the seat. Republicans are determined to win it back this year and have poured millions into the campaign of Thom Tillis, speaker of the North Carolina House. Until recently, Tillis remained...