(Oregon City, OR)  --  The Clackamas County Board of Commissioners swearing-in ceremony that was scheduled for today has been postponed because of violent threats.  The county hasn't detailed the nature of the threats, but Commissioner Mark Shull faces calls to resign two weeks after taking office because of Islamophobic posts on Facebook.  The Multnomah County Board of Commissioners posted a letter online calling on Shull to resign.