SurveyUSA has released its March 2011 poll, which showed Minnesotans approved a marriage amendment defining marriage as one man and one woman, 62 to 33 percent. Even 60 percent of 18-34 year olds said they would vote for it. These numbers seem a bit on the high side to us, but that's not the main point.

Why didn't KSTP, the ABC News affiliate, release this poll in March?

If KSTP/ABC News felt the March poll was inaccurate, why then did they refer to it as a benchmark when their latest poll showed Minnesotans approve a marriage amendment 51 to 40 percent?

How pervasive is the Minnesota media's bias on this issue?

Enquiring minds want to know.