A North Carolina legislator best known as the architect of the state’s so-called bathroom bill three years ago is racking up contributions and endorsements as he runs in the repeat of a congressional race marred by a ballot fraud scandal. State Sen. Dan Bishop of Charlotte is a leading contender among 10 candidates in next week’s GOP primary in the 9th Congressional District special election. The state elections board unanimously ordered the new election after Mark Harris, the Republican in last year’s race against Democrat Dan McCready, used a political operative accused of improperly collecting mail-in ballots. Harris opted not...