PHOENIX — The Pima County Board of Supervisors on Tuesday rejected a request from Democratic Rep. Ron Barber to delay certifying election results as he challenges the reasons ballots that could shrink Republican challenger Martha McSally’s slim vote lead weren’t counted. Kevin Hamilton, a lawyer representing Barber’s campaign, said in a letter to the board that there are more than 130 rejected ballots that should have been counted. Barber’s campaign has collected affidavits from voters who said they were qualified to cast a ballot but had their ballots rejected. “As a result, if the board certifies the canvass without correcting...