Water rates in San Diego next year will go up by the smallest hike since 2014. More than half of that increase is due to rising costs charged by the Metropolitan Water District of Southern California. That agency and our County Water Authority don’t see eye-to-eye. Jim Madaffer, vice chairman of the Water Authority, stops by NBC 7’s Politically Speaking to walk us through issues that prompted a rate-case lawsuit the authority won in Superior Court , and which MWD has taken to an appeal court.