AdvertisementDemocrats Winning Big Money, GOP Winning Big Secret MoneyOctober 06, 2014S.V. DátefacebookEmailRepublican strategist Karl Rove's Crossroads GPS group is planning to spend at least $23 million in key Senate races in the final two months of the campaign. The group is a tax-exempt non-profit and is allowed to keep the names of its donors secret. (AP)