A three-year investigation of former Arizona Attorney General Tom Horne has found he used his office staff to work on his failed 2014 re-election effort but that no criminal charges are warranted and he won't have to pay back additional money.

Doug Ducey’s extensive fundraising may not be enough to keep up with prolific advertising, according to a recent campaign finance report.

Attorney General Tom Horne said he does not believe the renewed charges he violated campaign finance laws in getting his office will undermine his bid for reelection.

A former Attorney General’s Office staffer filed a long-awaited complaint with election officials alleging that she and other employees spent significant amounts of time working on Tom Horne’s reelection on taxpayer time.

State elections officials asked the Attorney General’s Office on Wednesday to investigate allegations that Sen. Rick Murphy violated a campaign finance law.

An organization that got involved in several 2012 campaigns and recently sued the Maricopa County Special Health Care District now has its sights set on Attorney General Tom Horne.

Horne could face bloody, expensive battle in 2014 attorney general race

Tom Horne has long maintained that he’s innocent of the campaign finance allegations against him, but he may not get a chance to prove it until after voters have decided whether to give him a second term as attorney general.

Supreme Court campaign finance case could change Arizona elections

While Arizona’s higher campaign contribution limits hang in the balance, a case before the U.S. Supreme Court might achieve what the state law’s supporters seek – give people the ability to contribute more to their favorite politicians and allow candidates to raise bigger amounts from backers.

An Arizona Court of Appeals ruling that put the state’s new campaign contribution limits on hold triggered widespread confusion among candidates and election attorneys.

Clear path to general election provides a boost to DuVal, but …

After five Republican gubernatorial hopefuls held their first candidate forum, some observers said the big winner was a candidate who wasn’t in the room — Democratic nominee-in-waiting Fred DuVal.