Charles Koch speaks out on his family's much-maligned political spending

Charles Koch wrote this piece in the WSJ to, in part, defend his family's political spending. 


"For many years, I, my family and our company have contributed to a variety of intellectual and political causes working to solve these problems. Because of our activism, we've been vilified by various groups. Despite this criticism, we're determined to keep contributing and standing up for those politicians, like Wisconsin Gov. Scott Walker, who are taking these challenges seriously."