I found this website via facebook post. There is a ton of information about actions against the Koch Brothers, their products, etc. Definitely worth a little time to check out!
http://kochwatch.org/For example:
OE Press Release: Nonpartisan Group Offers $25,000 Reward For Evidence of Tampering in Wisconsin's Supreme Court Election
Nonpartisan Advocacy Group Offers $25,000 Reward For Evidence of Tampering in Wisconsin's Supreme Court Election
WASHINGTON, May 5, 2011 /PRNewswire-USNewswire/ -- ProtectOurElections.org today offered a $25,000 reward for "information leading to the arrest and conviction of any person or persons for election tampering, resulting in reversal of the current outcome of the April 5, 2011 Wisconsin Supreme Court election in which David Prosser is said to lead JoAnne Kloppenburg by more than 7,000 votes." A reward poster is located at
http://www.velvetrevolution.us/images/SC-Reward.pdf.ProtectOurElections.org, a network of organizations spearheaded by government accountability watchdog group VelvetRevolution.us, had publicly encouraged Supreme Court candidate JoAnne Kloppenburg to pursue a statewide hand recount of the election. Kloppenburg did request the recount, now underway throughout the state. In some jurisdictions, however, the ballots are being tabulated by the same optical scan machines that produced the first vote count.
And:
Koch Front Groups:
Americans for Prosperity
Americans for Prosperity Foundation
Cato Institute
League of American Voters
American Legislative Exchange Council
FreedomWorks (Kochs no longer affiliated)
Citizens for a Sound Economy
Institute For Justice
Mercatus Center
Reason Foundation
Manhattan Institute for Policy Research
Citizens for a Strong America