--  The latest SurveyUSA/KSTP poll shows a dead heat on the voter photo-ID amendment, with 48 percent saying "yes," 48 percent "no" and five percent undecided.  Meanwhile Barack Obama has widened his lead in Minnesota, with the poll showing the president with 52 percent to Republican challenger Mitt Romney's 41 percent.  The survey also finds Democratic incumbent U-S Senator Amy Klobuchar overwhelmingly defeating Republican challenger Kurt Bills, 60 percent to 30.