In response to a Chicago Sun-Times story that ran today, Tammy Duckworth's camp released a statement on Wednesday taking issue with a source who told the paper that a SuperPAC was preparing to launch another round of ads in an attempt to "bury" Duckworth in the fray.
The campaign also said it was preparing to file a complaint with the Federal Elections Commission against Joe "Walsh for Congress, Now or Never, and Americans for Limited Government for illegal coordination."
Walsh has said he did not know who was funding the SuperPAC.
On Tuesday it was revealed that the biggest donor by far was Americans for Limited Government -- a group Walsh helped "launch" years ago, according to his own Web site.
The Now or Never SuperPAC has pumped $2 million in attack ads against Duckworth in the race, bolstered by $1.9 million donation in September from Americans for Limited Government.
A source said another $2.5 million was planned with just three weeks left in the race.
"New reports state that the secretly-funded Now or Never special interest Super PAC will be dropping $2.5 million to "bury" Tammy Duckworth - in addition to the $2 million they have already spent in misleading negative ads," a statement released by the campaign said.
According to the campaign, Duckworth responded to the report by saying, "I wasn't buried in Iraq and I won't be buried by Joe Walsh's Out-Of-State Right Wing Super PAC."
Duckworth is an Iraqi war veteran who lost both her legs in combat.