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 Associated Press reports. Since 2011, the organization has raised more than $11 million.
The group's main opponent, Minnesotans for Marriage, says they raised about $2.4 million in the same time period. They've collected about $5.1 million for the campaign in support of the amendment.
The outcome is still too close to predict. According to a recent poll by the Star Tribune, 48 percent of likely voters would support the amendment that would define marriage as between one man and one woman and 47 percent say they'd vote against the measure.