(Raleigh, NC)  --  The latest poll shows a nearly even split among Minnesotans over the proposed marriage amendment on the ballot this November.  The Public Policy Polling survey shows 48 percent support it and 47 percent oppose -- a significantly tighter race than earlier this year.  Kate Brickman with Minnesotans United for All Families -- which opposes the amendment -- says they continue talking to people about how it affects them.  Brickman says "with conversations, people move to a 'no' vote.  They do not move to a 'yes' vote."  But Carleton College political analyst Steven Schier  says in other states the polls have understated support for marriage amendments by several points.  He says because it's so controversial, some people may not want to give their true opinion to pollsters.