U.S. Rep. Martha McSally, Congressional District 2, has told Republican colleagues that she will enter the race for the U.S. Senate seat being vacated by fellow Republican Jeff Flake, a move that puts a mainstream candidate who could win backing from President Donald Trump into the primary race.

Arizona Republican Sen. Jeff Flake’s re-election race is becoming a case study in the GOP’s convulsions among the establishment, a furious base and angry donors.

If the success of supply side economics is so obvious, why doesn’t the research show it? We know the bias of the university research community – over 80 percent of their campaign contributions go to Democrats. The expression of this bias in the pages of research journals has been non-stop.

Between health care reform, the border wall, and growing international unrest, Washington has a lot on its plate in the weeks to come. But we must make a point of prioritizing tax reform. Thirty years have passed since the last serious reforms, and our economy has been hampered by our outdated system.

A new poll suggests that Sen. John McCain appears to be more vulnerable to a Republican primary challenge now than he was in 2010.

I often miss my time in the Maricopa County Treasurers Office, and last week was one of those times. Arizona’s newspaper of record published a story about legislation affecting a portion of Arizona property tax lien system.

Four Republicans in Arizona's U.S. House delegation are going on record as opposing a push to create a national monument near the Grand Canyon.

An Arizona conservative group released an ad Monday attacking GOP gubernatorial candidate Doug Ducey, alleging that Ducey has ties to attack ads from dark money groups that are smearing other candidates for governor.

Two Arizona congressmen are applauding news that top administrators at the Phoenix Veterans Affairs Health Care Center now are on administrative leave amid allegations of gross mismanagement and neglect at the facility.

WASHINGTON – Some were in college, some were barely walking. Some still have memories of the day, while others know only the legacy.