Sanders and Feingold take aim at big money in politics at a rally in Madison.
The billionaire Koch brothers are flooding elections in Texas with cash.
Expedia is the latest company to drop support of the American Legislative Exchange Council (ALEC).
The Kochs have invested money and network resources in state races in Oklahoma, Texas, and Wisconsin.
CMD follows the money.
The Koch brothers have turned their attention to races for the U.S. Senate, U.S. House and state governorships.