A CBS 5 News review of campaign finance data shows that although winning candidates raked in millions of dollars in direct contributions during their primary battles, they relied on outside groups, including Political Action Committees, to run television ads that attacked their opponents.
The race between Congressmen David Schweikert and Ben Quayle is a prime example. The Republican incumbents found themselves facing each other in the primary because of Arizona's redistricting.
Some of the most biting television ads were paid for by PACs. Many of those PACs only paid for negative ads, including this one, paid for by National Horizon. National Horizon is an Arizona-based PAC, funded in part by one of Schweikert's largest donors, a company called Southwest Retirement.
PACs also played a role in Republican Congressman Jeff Flake's bid to replace Sen. Jon Kyl when he retires at the end of this year. Flake faced a fierce and well-funded opponent in businessman Will Cardon.
Washington, DC based Club for Growth stepped in to help paint Cardon in a negative light, by sponsoring ads like this one.
The Club for Growth also gave money directly to Flake.
On the Democratic side, former state legislator Kyrsten Sinema benefited from roughly $100,000 that the PAC, Women Vote! spent on her behalf. In this race, it does not appear that the PAC spent money on negative ads.
That may change, as Sinema gears up to face her Republican opponent, former Paradise Valley Mayor Vernon Parker, in the general election.
Copyright 2012 CBS 5 (Meredith Corporation). All rights reserved.
Thursday, May 23 2013 10:39 AM EDT2013-05-23 14:39:51 GMT
A two-car crash between Bridgeport and Frankenmuth has resulted in the closure of Junction Road. The crash happened around 1 p.m. on Wednesday on Junction, between Reimer and Dixie Highway. BridgeportMore >
A two-car crash between Bridgeport and Frankenmuth resulted in the deaths of two people on Junction Road Wednesday afternoon.More >
Thursday, May 23 2013 9:33 AM EDT2013-05-23 13:33:05 GMT
WNEM has received word of an injury accident on northbound I-75 near mile marker 151. The area of the crash is between the intersection of I-675 and Washington Avenue or M-81. Not much is known aboutMore >
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Thursday, May 23 2013 9:51 AM EDT2013-05-23 13:51:45 GMT
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State police have identified a second person who died in a Friday crash.More >
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Wednesday, May 22 2013 5:01 PM EDT2013-05-22 21:01:34 GMT
WNEM TV5 has learned the Michigan State Police bomb squad has been called to a pawn shop in Bay City. The Bay County Sheriff's department said someone was hoping to pawn the hand grenade but when staffMore >
WNEM TV5 has learned the Michigan State Police bomb squad has been called to a pawn shop in Bay City to check out a hand grenade.More >
Wednesday, May 22 2013 6:07 PM EDT2013-05-22 22:07:29 GMT
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Thursday, May 23 2013 8:27 AM EDT2013-05-23 12:27:55 GMT
A swath of rain showers is moving it's way through Mid-Michigan, with most of the moisture falling in Arenac, Isabella, Midland and Bay counties. A flood warning has been issued for areas of the RifleMore >
A swath of rain showers is moving its way through Mid-Michigan, with most of the moisture falling in Arenac, Isabella, Midland and Bay counties.More >