PHOENIX – With just one week until Arizona’s primary election, political spending to affect legislative races paid for by outside groups that don’t disclose the source of the money amounts to almost half a million dollars.

The $478,000 in “dark money” was spent in the past six weeks, ramping up during the past two, once early ballots were mailed to Arizona voters.

A Republican-leaning legislative district representing northwestern Arizona, including Kingman and Lake Havasu City, has attracted the most money — about a quarter of the spending so far. “Dark money” groups have spent almost $65,000 to help Rep. Sonny Borrelli, R-Lake Havasu City, defeat former Sen. Ron Gould, R-Lake Havasu City, in the race for their district’s senate seat. “Dark money” groups spent $50,000 in the fight over the district’s two house seats.

Another $84,000 has been spent in Legislative District 12, a Republican district in the suburban, southeastern corner of the Phoenix metro area, including parts of Gilbert and Chandler. All of the “dark money” spent in the district has gone to help one slate. Positive spending has gone to help Rep. Warren Petersen, R-Gilbert, move from one of the district’s two House seats to the Senate, and to help re-elect veteran legislator Rep. Eddie Farnsworth, R-Gilbert, and to help newcomer Travis Grantham, R-Gilbert, replace Petersen. Negative spending has gone to defeat fellow Republican candidate for Senate Jimmy Lindblom, R-Gilbert, and Republican House candidate LaCinda Lewis, R-Gilbert.

American Federation For Children, Inc. spent the most “dark money” in Arizona so far, with $213,000 going mostly to help specific Republicans in primary fights. The group spent $24,000 to help one Democrat, Steven Begay, who is running for the Senate in the heavily Native American Legislative District 7. The pro-charter school group spent only $205,000 during the entire 2014 election cycle.

Arizona Free Enterprise Club spent roughly $77,000 so far, also entirely to sway Republican primaries. The group ended up spending roughly $248,000 in legislative races during the 2014 cycle, and another $1.2 million in statewide races that year.

Be sure to follow AZCIR’s Dark Money Twitter Bot (@AZDarkMoneyBot) for near-real time “Dark Money” updates.

Download all “dark money” transactions

Expenditure DateFiling CommitteeElect or DefeatTarget CommitteeRaceChamberAmount
7/13/16Arizona Cattle Feeders' AssociationAdvocating ElectionDavid Cook 4 OfficeAZLD8House$5,420.00
7/14/16Arizona WinsAdvocating ElectionRe-Elect Quezada 2Q16AZLD29Senate$14,480.00
7/14/16Arizona WinsAdvocating ElectionCommittee to Elect Maritza Miranda SaenzAZLD27Senate$14,480.00
7/25/16American Federation for Children, Inc.Advocating ElectionConservatives for StringerAZLD1House$9,772.79
7/26/16Arizona Free Enterprise ClubAdvocating ElectionFriends of Warren Petersen 2016AZLD12Senate$2,119.20
7/26/16Arizona Free Enterprise ClubAdvocating ElectionEddie Farnsworth 2016AZLD12House$2,119.20
7/26/16Arizona Free Enterprise ClubAdvocating ElectionGrantham for ArizonaAZLD12House$2,119.20
7/26/16Arizona Free Enterprise ClubAdvocating ElectionBowers 2016AZLD25House$2,049.50
7/27/16American Federation for Children, Inc.Advocating ElectionGriffin for Senate 2016AZLD14Senate$2,969.27
7/27/16American Federation for Children, Inc.Advocating ElectionFriends of Warren Petersen 2016AZLD12Senate$3,101.98
7/27/16American Federation for Children, Inc.Advocating ElectionBowers 2016AZLD25House$3,593.05
7/27/16American Federation for Children, Inc.Advocating ElectionAnthony Sizer For AZ State HouseAZLD14House$2,969.26
7/27/16American Federation for Children, Inc.Advocating ElectionVOTE BECKYAZLD14House$2,969.26
7/27/16American Federation for Children, Inc.Advocating ElectionEddie Farnsworth 2016AZLD12House$3,101.97
7/27/16American Federation for Children, Inc.Advocating ElectionBob Worsley for State Senate 2016AZLD25Senate$3,593.06
7/27/16American Federation for Children, Inc.Advocating ElectionGrantham for ArizonaAZLD12House$3,101.97
7/27/16American Federation for Children, Inc.Advocating ElectionElect Ross GroenAZLD25House$3,593.05
7/28/16Arizona Free Enterprise ClubAdvocating ElectionCTE Paul MosleyAZLD5House$6,810.68
7/28/16Arizona Free Enterprise ClubAdvocating ElectionSyms for ArizonaAZLD28House$6,099.00
7/28/16Arizona Free Enterprise ClubAdvocating ElectionElect Ross GroenAZLD25House$2,049.50
8/1/16CENTER FOR ARIZONA POLICY ACTIONAdvocating ElectionFriends of Warren Petersen 2016AZLD12Senate$1,216.96
8/1/16CENTER FOR ARIZONA POLICY ACTIONAdvocating ElectionBowers 2016AZLD25House$998.81
8/1/16CENTER FOR ARIZONA POLICY ACTIONAdvocating ElectionEddie Farnsworth 2016AZLD12House$1,216.96
8/1/16CENTER FOR ARIZONA POLICY ACTIONAdvocating ElectionGrantham for ArizonaAZLD12House$1,216.96
8/1/16CENTER FOR ARIZONA POLICY ACTIONAdvocating ElectionSyms for ArizonaAZLD28House$1,279.20
8/1/16CENTER FOR ARIZONA POLICY ACTIONAdvocating ElectionElect Ross GroenAZLD25House$998.81
8/2/16Arizona Free Enterprise ClubAdvocating ElectionFriends of Warren Petersen 2016AZLD12Senate$565.60
8/2/16Arizona Free Enterprise ClubAdvocating ElectionEddie Farnsworth 2016AZLD12House$565.60
8/2/16Arizona Free Enterprise ClubAdvocating ElectionGrantham for ArizonaAZLD12House$565.60
8/3/16American Federation for Children, Inc.Advocating ElectionConservatives for StringerAZLD1House$10,858.00
8/3/16Arizona Cattle Feeders' AssociationAdvocating ElectionDrew John for State House - PrimaryAZLD14House$3,450.00
8/3/16Arizona Cattle Feeders' AssociationAdvocating ElectionVOTE BECKYAZLD14House$3,450.00
8/3/16Arizona Cattle Feeders' AssociationAdvocating ElectionGrantham for ArizonaAZLD12House$8,280.00
8/5/16Market Freedom AllianceAdvocating DefeatCTE Ron GouldAZLD5Senate$6,120.00
8/5/16Market Freedom AllianceAdvocating DefeatCTE Ron GouldAZLD5Senate$3,500.00
8/5/16Market Freedom AllianceAdvocating DefeatCTE Ron GouldAZLD5Senate$3,794.40
8/5/16Market Freedom AllianceAdvocating DefeatCTE Ron GouldAZLD5Senate$3,230.55
8/5/16Market Freedom AllianceAdvocating ElectionBORRELLI SENATE COMMITTEEAZLD5Senate$3,230.55
8/5/16Market Freedom AllianceAdvocating ElectionBORRELLI SENATE COMMITTEEAZLD5Senate$3,500.00
8/5/16Market Freedom AllianceAdvocating ElectionBORRELLI SENATE COMMITTEEAZLD5Senate$3,794.40
8/5/16Market Freedom AllianceAdvocating ElectionBORRELLI SENATE COMMITTEEAZLD5Senate$6,120.00
8/5/16American Federation for Children, Inc.Advocating ElectionGriffin for Senate 2016AZLD14Senate$2,927.60
8/5/16American Federation for Children, Inc.Advocating ElectionGriffin for Senate 2016AZLD14Senate$1,695.94
8/5/16American Federation for Children, Inc.Advocating ElectionFriends of Warren Petersen 2016AZLD12Senate$3,068.64
8/5/16American Federation for Children, Inc.Advocating ElectionBowers 2016AZLD25House$3,779.97
8/5/16American Federation for Children, Inc.Advocating DefeatRegina E.Cobb 2016AZLD5House$9,358.71
8/5/16American Federation for Children, Inc.Advocating DefeatRegina E.Cobb 2016AZLD5House$4,279.60
8/5/16American Federation for Children, Inc.Advocating ElectionAnthony Sizer For AZ State HouseAZLD14House$1,695.93
8/5/16American Federation for Children, Inc.Advocating ElectionAnthony Sizer For AZ State HouseAZLD14House$2,927.59
8/5/16American Federation for Children, Inc.Advocating DefeatCommittee to Elect Mary HamwayAZLD28House$6,619.70
8/5/16American Federation for Children, Inc.Advocating ElectionVOTE BECKYAZLD14House$1,695.93
8/5/16American Federation for Children, Inc.Advocating ElectionVOTE BECKYAZLD14House$2,927.60
8/5/16American Federation for Children, Inc.Advocating ElectionCTE Paul MosleyAZLD5House$4,679.36
8/5/16American Federation for Children, Inc.Advocating ElectionEddie Farnsworth 2016AZLD12House$3,068.64
8/5/16American Federation for Children, Inc.Advocating ElectionConservatives for StringerAZLD1House$12,137.45
8/5/16American Federation for Children, Inc.Advocating ElectionConservatives for StringerAZLD1House$4,730.80
8/5/16American Federation for Children, Inc.Advocating ElectionCommittee to Elect Sam MedranoAZLD5House$4,679.35
8/5/16American Federation for Children, Inc.Advocating ElectionBob Worsley for State Senate 2016AZLD25Senate$3,779.98
8/5/16American Federation for Children, Inc.Advocating ElectionGrantham for ArizonaAZLD12House$3,068.64
8/5/16American Federation for Children, Inc.Advocating ElectionElect Ross GroenAZLD25House$3,779.98
8/6/16Market Freedom AllianceAdvocating DefeatCTE Ron GouldAZLD5Senate$2,571.85
8/6/16Market Freedom AllianceAdvocating ElectionBORRELLI SENATE COMMITTEEAZLD5Senate$2,571.85
8/6/16CENTER FOR ARIZONA POLICY ACTIONAdvocating ElectionFriends of Warren Petersen 2016AZLD12Senate$126.06
8/6/16CENTER FOR ARIZONA POLICY ACTIONAdvocating ElectionBowers 2016AZLD25House$110.06
8/6/16CENTER FOR ARIZONA POLICY ACTIONAdvocating ElectionEddie Farnsworth 2016AZLD12House$126.06
8/6/16CENTER FOR ARIZONA POLICY ACTIONAdvocating ElectionGrantham for ArizonaAZLD12House$126.06
8/6/16CENTER FOR ARIZONA POLICY ACTIONAdvocating ElectionSyms for ArizonaAZLD28House$82.21
8/6/16CENTER FOR ARIZONA POLICY ACTIONAdvocating ElectionElect Ross GroenAZLD25House$110.06
8/8/16CENTER FOR ARIZONA POLICY ACTIONAdvocating ElectionBowers 2016AZLD25House$1,066.31
8/8/16CENTER FOR ARIZONA POLICY ACTIONAdvocating ElectionSyms for ArizonaAZLD28House$1,383.99
8/8/16CENTER FOR ARIZONA POLICY ACTIONAdvocating ElectionElect Ross GroenAZLD25House$1,066.31
8/9/16American Federation for Children, Inc.Advocating DefeatCommittee to Elect Mary HamwayAZLD28House$9,753.10
8/9/16American Federation for Children, Inc.Advocating ElectionCommittee to Elect Steven C BegayAZLD7Senate$9,285.62
8/9/16American Federation for Children, Inc.Advocating ElectionCommittee to Elect Steven C BegayAZLD7Senate$4,483.50
8/10/16Arizona Free Enterprise ClubAdvocating DefeatCommittee to Elect Diane LandisAZLD13Senate$6,177.00
8/11/16Arizona Free Enterprise ClubAdvocating ElectionFriends of Warren Petersen 2016AZLD12Senate$3,291.20
8/11/16Arizona Free Enterprise ClubAdvocating ElectionElect Matt MoralesAZLD28House$3,999.50
8/11/16Arizona Free Enterprise ClubAdvocating DefeatJimmy Lindblom for State SenateAZLD12Senate$3,291.20
8/11/16Arizona Free Enterprise ClubAdvocating ElectionSyms for ArizonaAZLD28House$3,999.50
8/11/16CENTER FOR ARIZONA POLICY ACTIONAdvocating ElectionFriends of Warren Petersen 2016AZLD12Senate$666.62
8/11/16CENTER FOR ARIZONA POLICY ACTIONAdvocating ElectionFriends of Warren Petersen 2016AZLD12Senate$1,463.74
8/11/16CENTER FOR ARIZONA POLICY ACTIONAdvocating ElectionEddie Farnsworth 2016AZLD12House$1,463.74
8/11/16CENTER FOR ARIZONA POLICY ACTIONAdvocating ElectionEddie Farnsworth 2016AZLD12House$666.62
8/11/16CENTER FOR ARIZONA POLICY ACTIONAdvocating ElectionGrantham for ArizonaAZLD12House$666.62
8/11/16CENTER FOR ARIZONA POLICY ACTIONAdvocating ElectionGrantham for ArizonaAZLD12House$1,463.74
8/12/16Arizona CATalyst, Inc.Advocating ElectionCommittee to Elect Diane LandisAZLD13Senate$6,500.00
8/12/16American Federation for Children, Inc.Advocating DefeatRegina E.Cobb 2016AZLD5House$3,745.00
8/12/16Arizona Trucking AssociationAdvocating ElectionBORRELLI SENATE COMMITTEEAZLD5Senate$3,564.21
8/15/16American Federation for Children, Inc.Advocating DefeatJimmy Lindblom for State SenateAZLD12Senate$4,554.51
8/15/16American Federation for Children, Inc.Advocating DefeatLewisforAZHouseAZLD12House$4,554.50
8/14/16Market Freedom AllianceAdvocating DefeatCTE Ron GouldAZLD5Senate$3,500.00
8/14/16Market Freedom AllianceAdvocating DefeatCTE Ron GouldAZLD5Senate$4,680.00
8/14/16Market Freedom AllianceAdvocating ElectionBORRELLI SENATE COMMITTEEAZLD5Senate$4,680.00
8/14/16Market Freedom AllianceAdvocating ElectionBORRELLI SENATE COMMITTEEAZLD5Senate$3,500.00
8/5/16Home Builders Association of Central ArizonaAdvocating ElectionDavid Cook 4 OfficeAZLD8House$1,000.00
8/15/16Home Builders Association of Central ArizonaAdvocating ElectionFriends of Warren Petersen 2016AZLD12Senate$4,831.00
8/15/16CENTER FOR ARIZONA POLICY ACTIONAdvocating ElectionBowers 2016AZLD25House$1,240.01
8/15/16CENTER FOR ARIZONA POLICY ACTIONAdvocating ElectionSyms for ArizonaAZLD28House$1,225.66
8/15/16CENTER FOR ARIZONA POLICY ACTIONAdvocating ElectionElect Ross GroenAZLD25House$1,240.01
8/16/16CENTER FOR ARIZONA POLICY ACTIONAdvocating ElectionFriends of Warren Petersen 2016AZLD12Senate$1,342.00
8/16/16CENTER FOR ARIZONA POLICY ACTIONAdvocating ElectionEddie Farnsworth 2016AZLD12House$1,342.00
8/16/16CENTER FOR ARIZONA POLICY ACTIONAdvocating ElectionGrantham for ArizonaAZLD12House$1,342.00
8/17/16Arizona Free Enterprise ClubAdvocating ElectionCTE Paul MosleyAZLD5House$4,323.26
8/17/16Arizona Free Enterprise ClubAdvocating ElectionConservatives for StringerAZLD1House$9,198.11
8/17/16Arizona Cattle Feeders' AssociationAdvocating ElectionFriends of Warren Petersen 2016AZLD12Senate$500.00
8/17/16Arizona Cattle Feeders' AssociationAdvocating ElectionBowers 2016AZLD25House$1,000.00
8/17/16Arizona Cattle Feeders' AssociationAdvocating ElectionDavid Cook 4 OfficeAZLD8House$4,352.00
8/17/16Arizona Cattle Feeders' AssociationAdvocating ElectionGrantham for ArizonaAZLD12House$500.00
8/17/16Home Builders Association of Central ArizonaAdvocating ElectionFriends of Warren Petersen 2016AZLD12Senate$1,250.00
8/17/16Home Builders Association of Central ArizonaAdvocating ElectionDavid Cook 4 OfficeAZLD8House$1,000.00
8/17/16Home Builders Association of Central ArizonaAdvocating ElectionGrantham for ArizonaAZLD12House$1,250.00
8/17/16Arizona Student Achievement CoalitionAdvocating ElectionMIRANDA FOR SENATE 2016AZLD27Senate$1,629.00
8/17/16Arizona Student Achievement CoalitionAdvocating ElectionFriends of Reginald BoldingAZLD27House$1,314.00
8/17/16Arizona Student Achievement CoalitionAdvocating ElectionRios for House 2016AZLD27House$1,315.00
8/17/16Arizona Student Achievement CoalitionAdvocating ElectionBowers 2016AZLD25House$6,077.00
8/18/16Arizona Free Enterprise ClubAdvocating ElectionBowers 2016AZLD25House$3,400.00
8/18/16Arizona Free Enterprise ClubAdvocating ElectionElect Ross GroenAZLD25House$3,400.00
8/18/16Arizona Free Enterprise ClubAdvocating DefeatCommittee to Elect Diane LandisAZLD13House$5,533.00
8/18/16Grand Canyon State Electric Cooperative AssociationAdvocating ElectionRegina E.Cobb 2016AZLD5House$3,249.00
8/18/16Arizona Trucking AssociationAdvocating ElectionBORRELLI SENATE COMMITTEEAZLD5Senate$3,564.21
8/19/16American Federation for Children, Inc.Advocating ElectionGriffin for Senate 2016AZLD14Senate$1,646.52
8/19/16American Federation for Children, Inc.Advocating ElectionBowers 2016AZLD25House$1,997.38
8/19/16American Federation for Children, Inc.Advocating DefeatRegina E.Cobb 2016AZLD5House$1,869.35
8/19/16American Federation for Children, Inc.Advocating ElectionAnthony Sizer For AZ State HouseAZLD14House$1,646.51
8/19/16American Federation for Children, Inc.Advocating DefeatCommittee to Elect Mary HamwayAZLD28House$5,488.65
8/19/16American Federation for Children, Inc.Advocating DefeatCommittee to Elect Mary HamwayAZLD28House$8,690.13
8/19/16American Federation for Children, Inc.Advocating ElectionVOTE BECKYAZLD14House$1,646.51
8/19/16American Federation for Children, Inc.Advocating ElectionCTE Paul MosleyAZLD5House$1,869.36
8/19/16American Federation for Children, Inc.Advocating ElectionCommittee to Elect Sam MedranoAZLD5House$1,869.35
8/19/16American Federation for Children, Inc.Advocating ElectionBob Worsley for State Senate 2016AZLD25Senate$1,997.39
8/19/16American Federation for Children, Inc.Advocating ElectionCommittee to Elect Steven C BegayAZLD7Senate$7,714.24
8/19/16American Federation for Children, Inc.Advocating ElectionCommittee to Elect Steven C BegayAZLD7Senate$320.25
8/19/16American Federation for Children, Inc.Advocating DefeatJimmy Lindblom for State SenateAZLD12Senate$2,544.66
8/19/16American Federation for Children, Inc.Advocating DefeatLewisforAZHouseAZLD12House$2,544.66
8/19/16American Federation for Children, Inc.Advocating ElectionElect Ross GroenAZLD25House$1,997.39
8/19/16Arizona Free Enterprise ClubAdvocating ElectionFriends of Warren Petersen 2016AZLD12Senate$2,730.58
8/19/16Arizona Free Enterprise ClubAdvocating DefeatJimmy Lindblom for State SenateAZLD12Senate$2,730.58
8/19/16Grand Canyon State Electric Cooperative AssociationAdvocating ElectionDrew John for State House - PrimaryAZLD14House$1,392.00
8/19/16Grand Canyon State Electric Cooperative AssociationAdvocating ElectionBowers 2016AZLD25House$2,748.00
8/19/16Grand Canyon State Electric Cooperative AssociationAdvocating ElectionChip Davis for AZAZLD1House$5,001.00
8/19/16Grand Canyon State Electric Cooperative AssociationAdvocating ElectionBORRELLI SENATE COMMITTEEAZLD5Senate$2,876.00
8/19/16Grand Canyon State Electric Cooperative AssociationAdvocating ElectionCommittee to Elect Sam MedranoAZLD5House$3,249.00
8/22/16American Federation for Children, Inc.Advocating ElectionCommittee to Elect Steven C BegayAZLD7Senate$2,324.70
8/22/16American Federation for Children, Inc.Advocating ElectionCommittee to Elect Steven C BegayAZLD7Senate$250.00

An earlier version of this story inaccurately accounted for Steven Begay as running in the House Republican primary. He is running in the Senate Democratic primary.