That's the question that readers are undoubtedly asking after seeing this piece on President Obama's budget proposals. The piece featured three separate cites from Maya MacGuineas, who is the president of the Committee for a Responsible Federal Budget. (One cite included unnamed "others.") The Committee for a Responsible Federal Budget has received substantial funding from Peterson and his foundation over the years.
It then turns to an unnamed "GOP aide" who criticizes Obama's "fictitious savings," moving to Robert Bixby, the executive director of the Concord Coalition, an organization that was started by Peter Peterson and has received substantial funding from him and his foundation.
The piece concludes with a critical comment from Ken Kies, who is identified as "a longtime corporate tax lobbyist."
So there you have it: two budget experts funded by Peter Peterson, an unnamed GOP aide and a longtime corporate tax lobbyist. That's Fair and Balanced budget reporting at the Washington Post.