Cochise and Pima counties have finished recounts of nearly 220,000 votes cast in the too-close-to-call race between Democratic Rep. Ron Barber and Republican Martha McSally.

Arizona’s first recount of a congressional general election in history is underway, but not without the first of what may be many legal challenges to the process.

A recount in southern Arizona's 2nd Congressional District race between Democratic incumbent Ron Barber and Republican challenger Martha McSally is set to begin.

The first recount in a congressional general election in Arizona history is set to begin, with U.S. Rep. Ron Barber hoping to buck history and overtake Republican Martha McSally on a second try.

Martha McSally has asked a federal court judge to dismiss a lawsuit by Democratic Rep. Ron Barber that seeks to stop the official certification of election results.

Attorneys for U.S. Rep. Ron Barber, who was narrowly defeated by Republican Martha McSally in his re-election campaign, want elections officials to reexamine 132 ballots from Pima County that they claimed were improperly tossed.

The U.S. Supreme Court this afternoon refused to hold up a federal appellate court ruling which voided an Arizona law denying bail to some people not in this country legally.

A recount will be needed to determine if Republican Martha McSally's lead over Democratic Rep. Ron Barber stands, according to unofficial election results from Pima County completed Wednesday.

Pima County elections officials discovered 208 additional ballots on Wednesday from voters in the tightly contested 2nd Congressional District race.

A recount is likely to be triggered in Arizona’s 2nd Congressional District, where Republican Martha McSally leads U.S. Rep. Ron Barber by fewer than 200 votes.