http://www.motherjones.com/environment/2015/03/scott-walker-environment-climate-change-2016
"Koch Industries gave $43,000 to Walker's 2010 election campaign, and just after he took office, the Kochs doubled their lobbying force in Madison. In 2011 and 2012, David Koch and Americans for Prosperity spent $11 million backing Walker's agenda and his successful effort to avoid being recalled."
