http://prwatch.org/news/2016/11/13179/koch-cash-withheld-trump-instrumental-key-senate-races
"In total, CMD documented 347 Koch candidates in 2016 and documented spending for those candidates of $41.13 million. There may be more Koch candidates promoted by the Kochs’ grassroots arm Americans for Prosperity, and similar dark money non-profits linked to the wider Koch network. But these groups do not always report their election-related activities or disclose the donors. Of the 347 Koch candidates, 169 were running at the state or local level. In Texas, the billionaire brothers went so far as to support a candidate for the State Railroad Commission and multiple candidates for the Corpus Christi city council."
