Democratic U.S. Rep. Ann Kirkpatrick is widening her lead over Republican Speaker of the Arizona House Andy Tobin in Arizona’s 1st Congressional District, up to more than 5,000 votes, or nearly 5 percentage points, from 2,000 votes earlier in the night.

On the airwaves of a popular Navajo radio station, President Barack Obama uses the Navajo greeting "Ya'at'eeh" and implores tribal members to get out and vote for Democrats.

Republican Andy Tobin and Democratic Rep. Ann Kirkpatrick found common ground during a 1st Congressional District debate on protecting the A-10 military jet the Air Force wants to mothball and agreed that Social Security benefits must be protected.

The air war in Arizona’s 1st Congressional District has officially begun, with both candidates airing their own introductory TV ads, and their respective party’s independent expenditure groups taking on the role of attack dogs in a string of commercials blaring from TVs across the sprawling district.

Democratic US Rep. Ann Kirkpatrick and Republican challenger Andy Tobin attempted to distance themselves from their respective political parties and past unpopular legislative decisions in the first debate of their contest to represent Arizona’s 1st Congressional District.

National Republicans are helping raise the profile of Arizona congressional candidate Andy Tobin by picking him to deliver the GOP's national radio address Saturday.

Overall voter turnout in Arizona’s primary election barely surpassed 27 percent, but in a few voting precincts in northern Arizona, turnout was much higher — impossibly high, in fact.

Arizona House Speaker Andy Tobin narrowly edged his two competitors and snatched the Republican nomination to take on Democratic U.S. Rep. Ann Kirkpatrick in November. But now his real challenge begins.

Arizona House Speaker Andy Tobin will be the Republican nominee to take on U.S. Rep. Ann Kirkpatrick in Arizona’s 1st Congressional District, as Republican Gary Kiehne, who was trailing Tobin by 324 votes with thousands of ballots left to count, conceded the race this afternoon.

The three-way Republican primary in Arizona’s 1st Congressional District is still too close to call, as Arizona House speaker Andy Tobin and rancher Gary Kiehne are locked in a near tie, and neither is conceding the race. As of Thursday morning, Tobin was holding a lead of 469 votes.