Pennsylvania Gov. Tom Wolf vetoed a Republican-backed election overhaul bill that would expand voter identification requirements, move up the voter registration deadline, limit the use of drop-boxes, and allow county officials to conduct early pre-canvassing for mail-in ballots, among other measures. In explaining why he vetoed the bill, the Democrat governor wrote that he “made it clear I wouldn’t sign a bill that creates barriers to voting,” adding “that’s exactly what this bill does by: Limiting mail ballots, Capping early voting, Cutting voter registration time.” On Wednesday, Wolf also used his line-item veto authority to remove a budget legislation proposal that would earmark millions of dollars to create an election-auditing agency. Wolf separately wrote in his veto letter that he wants to work on legislation that can be passed on a bipartisan basis later this year. The election measure, known as the Voting Rights Protection Act, passed in the GOP-held state Senate by …