(Rochester, MN)  —  A conservative Minnesota think tank is suing an Olmstead County country club after they say their event at the club was shut down because of “anti-free speech bullies.”  The luncheon on public safety sponsored by the Center of the American Experiment was set to take place last month at the Rochester Golf and Country Club.  Officials with the group say the club canceled the event after club members gathered a petition objecting to it.  CAE is suing the club for breach of contract.  Erin Nostrum, who created the petition, is being sued for interference with a contract.