Republican Christine Jones loaned her campaign for Arizona governor $1.6 million in the first five months of the year, funding by far the largest percentage of her election effort from her own coffers. The former Internet company executive has now loaned her own campaign nearly $2.1 million.

State Treasurer Doug Ducey brought in nearly $933,000 and former Mesa Mayor Scott Smith took in about $900,000 and pumped $150,000 of his own cash into his campaign account.

Campaign finance reports filed Monday show former U.S. Rep. Frank Riggs brought in $212,000, including a $170,000 personal loan.

Secretary of State Ken Bennett and former Maricopa County Attorney Andrew Thomas round out the six-person GOP field. They've been awarded nearly $754,000 in public financing.

Democrat Fred DuVal is unopposed in the Aug. 26 primary.