The U.S. Supreme Court’s ruling that upheld the Arizona Independent Redistricting Commission’s right to draw congressional boundaries opened the door for a second, long-dormant challenge to the districts to move forward.

If the U.S. Supreme Court orders the Arizona Legislature to redraw the state’s congressional map, Republican strategists expect Democratic Congresswomen Ann Kirkpatrick and Kyrsten Sinema’s congressional districts to be the first on the chopping block.

Arizona Rep. Kyrsten Sinema is taking a Democratic leadership role in the U.S. House of Representatives.

The AP is reporting that U.S. Rep. Kyrsten Sinema has retained her seat in Arizona's 9th Congressional District, with 54 percent of the vote and 97 percent of precincts reporting.

After the end of a bitter GOP primary, the first general election skirmish in the battle for Arizona’s 9th Congressional District centers on the crisis in health care for veterans.

Incumbents in three Arizona congressional districts that have been deemed among the most competitive in the country have raised substantially more than their challengers, more than 3-to-1 in some cases.

Democratic Rep. Kyrsten Sinema has filed nominating petitions to quality for the ballot as she prepares to seek re-election in Arizona's 9th Congressional District.

Former Arizona State and NFL quarterback Andrew Walter has officially entered the Republican primary for Arizona's 9th Congressional District.

Barely a year after winning a hard-fought battle to put Arizona’s 9th Congressional District in the Democratic column, U.S. Rep. Kyrsten Sinema faces a fork in the road.

Retired Air Force Lieutenant Colonel Wendy Rogers leads political newcomer and former Arizona State University quarterback Andrew Walter in fundraising for the Republican primary in Arizona’s 9th Congressional District.