(Portland, OR)  --  A Portland police officer is stepping down after pleading guilty to official misconduct.  Christian Robert Berge pleaded guilty yesterday.  Prosecutors say the 46-year-old unlawfully and knowingly performed an act with the intent to obtain a benefit between August of 2015 and last May.  There's no word on what that benefit was.  The ten-year Portland Police Department veteran was sentenced to 18 months probation and 120 hours of community service.  An internal review is ongoing.