A second super PAC has jumped into the highly competitive race for Pennsylvania's Fifth Congressional District.
The group, known as "Progress in PA-05," is backing Democrat Ashley Lunkenheimer. Depending on how much the super PAC spends, it could be a major boost for her campaign.
It is unclear who is funding the super PAC for Lunkenheimer. The committee has not disclosed any donations. Its treasurer, Brian Lenzmeier, did not respond to repeated requests for comment.
The super PAC lists its address as a suite in a high-rise building in Washington where the political law firm Sandler Reiff Lamb Rosenstein & Birkenstock is located. A woman who answered the phone at the company said Progress in PA-05 is one of its clients.