A group backed by billionaires Charles and David Koch will start an airwave blitz in Louisiana on Wednesday.
Ahead of a Dec. 6 runoff for the Louisiana Senate seat between Democratic incumbent Sen. Mary Landrieu and Republican nominee Bill Cassidy, Freedom Partners Action Fund said late Tuesday it will spend $2.1 million in ads.
The ads will argue that Landrieu is working against oil and gas production in Louisiana, according to the Associated Press.
The group, formed in June, is set to spend $25 million politically this year.
Neither Landrieu nor Cassidy won 50 percent of the vote Tuesday — independent Rob Maness took nearly 15 percent of the vote.
The runoff in December will now be a two-way race, featuring Landrieu and Cassidy.
