Because somehow their $4.8 million is more corrosive to the political system than that of the top two donors, Tom Steyer and Michael Bloomberg – who gave nearly $100 million to liberal candidates and causes.

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.

And big-money liberal groups ranging from the Democrats’ Senate campaign arm and House super PAC to the outfits run by billionaire Tom Steyer and conservative-turned-liberal enforcer David Brock all signaled that they intended to pursue anti-Koch spending and oppo tactics headed into the 2016.

I guess this makes it really obvious – it isn’t “big money” that the Left objects to. Rather, the Left objects to speech and other forms of advocacy that go against their beliefs.