Law360, New York ( September 13, 2012, 2:02 PM EDT) -- Recently, we have been examining whether the old law prohibiting campaign contributions will be upheld post-Citizens United.[1] First, there was the decision of Wagner v. Federal Election Commission, in which the District Court for the District of Columbia denied a motion for a preliminary injunction and upheld the constitutionality of the ban on campaign contributions from federal government contractors.[2] Then, there was the U.S. Supreme Court's June 25, 2012, ruling in American Tradition Partnership Inc. et al. v. Bullock,[3] which overturned a ruling by the Montana Supreme Court upholding a law prohibiting contractor campaign contributions.[4] The Montana Supreme Court had found that the ban was justified by the long history of corruption related to contractor expenditures in Montana, but the Supreme Court overturned that decision, with little discussion, finding that Citizens United applied....