Do you know who's behind "Concerned Taxpayers of America?" No. And neither does Congressman Peter DeFazio (D-Oregon). Even though they are paying for TV ads that attack him. So he tried to find out by going, in person, to their listed headquarters in Washington, D.C.
You will be shocked, shocked to find out that the guy there, Michael Omegna, first wouldn't answer the door, and then lied about being connected with this shadowy group. Or, in Republican terms, "misspoke."
Amanda Terkel has the story, plus video.
[Added] In looking for more info about "Concerned Taxpayers of America," which I didn't find, I came across a closely related story about another group with the same modi operandi: a bland name ("Americans for Job Security"), a mail drop somewhere, a "sole employee," and a whole lot of money sloshing to Republicans and their causes, from who knows where.
(h/t: Joan McCarter)