Waterloo Cedar Falls CourierOutside groups join Senate frayDesMoinesRegister.comThe bulk of the money paying for the barrage of television ads Iowans saw in the U.S. Senate race came from outside groups. Here is a breakdown of who they were, their ideology and whom they supported. TV ADS: $41 million for Senate | Pro-Ernst ...Flood of money in Iowa's US Senate race topped $41 millionOmaha World-HeraldIowa Senate TV ads surpass $41MQuad City TimesErnst-Braley Senate race third costliest in USWaterloo Cedar Falls Courierall 8 news articles »