Anonymous sources
Center for Responsive Politics
EXCLUSIVE: Obama Campaign Refunding Money Donated by Federal Lobbyists - Center for Responsive Politics
"We don't create the definition of federal lobbyist -- Congress does," an Obama campaign aide, who spoke on the condition of anonymity, told OpenSecrets Blog. "And we go far beyond the law by declining contributions from them.
Alaska Senate Race Called for Murkowski, US Chamber Paid by Insurers to Oppose ... - Center for Responsive Politics
An anonymous source at the Chamber with knowledge of the contribution said the money came from AHIP. Disclosure laws did not require the group to announce ...