Can shareholders of a government-sponsored enterprise successfully challenge the constitutionality of a government takeover of the entity?  Shareholders of Fannie Mae and Freddie Mac will try to do so in a $41 billion class action filed against the United States in the Court of Federal Claims on June 10.  Plaintiffs allege that even though the Federal Housing Finance Authority’s 2008 takeover of the mortgage giants benefited the nation as a whole, it harmed the companies’ shareholders and violated their constitutionally protected private ownership rights.  For more information on this suit and to visit our Securities Litigation blog, please click here.