"Common Cause officials and at least one legal expert acknowledged the difficulty of getting the landmark case overturned in this way. But in a document to be submitted to the department Thursday, Common Cause President Bob Edgar cites appearances by Justice Clarence Thomas and Justice Antonin Scalia at retreats sponsored by Koch Industries, a corporation run by two major Republican donors who helped finance some of the new GOP groups founded after the ruling.
“It appears both justices have participated in political strategy sessions, perhaps while the case was pending, with corporate leaders whose political aims were advanced by the decision,” the Common Cause petition asserts."
Common Cause: Scalia, Thomas had Citizens United conflict of interest, should have recused themselves?
POLITICO.com: