A leading contender to become Kamala Harris’s running mate for the Democrats has reportedly exited the “veepstakes.” Roy Cooper, the Democratic governor of North Carolina, told Harris’ team he withdrew from consideration, two people briefed on the matter told The New York Times. CNN confirmed the news, citing a source. Cooper was said to be among the six leading candidates for Harris’s vice presidential candidate, along with big names such as Josh Shapiro, Mark Kelly, Andy Beshear, Tim Walz, J.B. Pritzker, Gretchen Whitmer, Gina Raimondo and Pete Buttigieg. Want more breaking political news? C…