Democrats are doubling down on their attacks against the Koch brothers. Prompted by Senate Majority Leader Harry Reid, Democrats spent millions of dollars spotlighting Republican ties to the billionaire conservative megadonors Charles and David Koch. But despite Republicans — and some Democrats — publicly decrying the strategy after Tuesday’s GOP wave as an ineffective waste of money, Reid told allies on election night that he planned to continue hammering the brothers, according to an operative close to him. Continue Reading Text Size And big-money liberal groups ranging from the Democrats’ Senate campaign arm and House super PAC to the outfits...