Washington ( CNN ) -- The super PAC backed by the Koch brothers is making its final push in Kansas on Thursday with a seven figure ad buy urging voters to keep independent candidate Greg Orman out of the Senate . Orman has remained tight-lipped on which party he would caucus with if elected , but the Koch-backed super PAC is funneling more than $ 1.1 million into Kansas airwaves to make sure Orman does n't get the chance to cast the deciding vote for Senate control . Freedom Partners Action Fund , the sole super PAC in the Koch brothers ' vast network of political groups , is launching two TV ads in Kansas that link Orman to President Barack Obama and Senate Majority Leader Harry Reid . The ads will run through Election Day . `` The future of Kansas , of our country could depend on you , '' the narrator says in one ad . `` Kansas can stop Harry Reid and Barack Obama 's failed policies . How ? Do n't vote for Greg Orman . '' Recent polls show Orman is neck-and-neck with incumbent Republican Sen. Pat Roberts in one of the most watched Senate races this cycle . And after Democrats pulled their candidate to boost Orman 's chances of unseating Roberts , Republicans have made every attempt to paint Orman as a Democrat-in-disguise . It 's a strategy the Koch-backed group has also adopted , dropping $ 6.5 million of ads in six other battleground Senate races to paint a vote for Democratic Senate candidates as a vote for Obama . The pair of Kansas ads might be the group 's final push , but it 's not their first . The super PAC threw $ 500,000 worth of TV time last month with the same strategy of linking Orman to Obama . Orman and Roberts are tied at 46 % of support , according to a Monmouth University poll released Monday . A CNN/ORC poll earlier this month also judged the race a statistical tie , with Roberts leading by just one point with 49 % . Orman is just one of the candidates this year who could shake things up in the Senate . In South Dakota , former Sen. and now-Independent Larry Pressler is a top contender in a competitive three-man race -- and there 's also a chance he could caucus with Democrats . And in North Carolina , a separate Koch-backed group is on the airwaves with an ad supporting libertarian candidate Sean Haugh in a ploy clearly aimed at siphoning liberal votes away from Democratic Sen. Kay Hagan . `` [ Sean Haugh ] supports our progressive values . Pro-legalization , pro-environment . More weed , less war , '' a young female narrator says in the ad . An independent candidate polling at about 3 % in Georgia could also push the race to a runoff in January if neither the Democrat or Republicans crack the 50 % vote threshold .
Koch-backed super PAC is pushing two TV ads worth over $ 1.1 million to defeat Greg Orman . Orman , an independent , could cast the deciding vote in deciding control of the Senate . Orman has n't said who he would caucus with , but Republicans are painting him as a Democrat-in-disguise . Comment: