The $1.2 million raised by Minnesotans United for All Families suggests the battle over the marriage amendment could be the most expensive campaign in the state this year. The leading group campaigning for the amendment will release its financial report Tuesday.

Minnesotans United for All Families, the driving force behind the campaign to defeat the proposed marriage amendment, raised $3 million from Sept. 19 to Oct. 22. The group's main opponent, Minnesotans for Marriage, says they raised about $2.4 million in the same time period.

Black voters in Minnesota are the latest audience sought by opponents and supporters of marriage amendment, the Star Tribune reports. The president of the national NAACP was in the state Monday to urge black voters to reject the ballot measure that would ban gay marriage. Church leaders are divided.

A group opposing a constitutional amendment to define marriage as between and man and a woman has raised $3.1 million since it last reported its finances in January. Minnesotans United for All Families, a group formed solely to defeat the proposed change to the state's constitution, has collected more than $4.6 million since the campaign started last year.

A new KSTP/SurveyUSA poll shows the battle between supporters and opponents of a ballot measure that would ban gay marriage could result in the closest statewide race on Election Day. The survey shows 48 percent support the amendment that would define marriage as between a man and woman, and 47 percent oppose it.

The marriage and voter ID amendments need the support of a majority of Minnesotans who vote in November to become part of the state Constitution. The latest poll shows the marriage amendment supported by 49 percent of respondents, while 51 percent back the voter ID measure.

After so many fierce debates, months of campaigning and millions of dollars spent, the marriage amendment could be decided by people who leave the question blank on their ballots, MPR reports. A blank ballot counts as a "no" vote on the question of whether a marriage should be defined in the state constitution as between a man and woman. To be approved, the measure needs 50 percent of voters to vote "yes."

Two new Minnesota Polls by the Star Tribune find a statistical dead head in the constitutional amendment to ban same-sex marriage, but a slight edge for support of a constitutional change that would require voters to show a government-issued photo ID.