Secretary of State Mark Ritchie said that he expects about 3 million Minnesota residents to turn out at the polls during Election Day Tuesday, which is on par with the roughly 80 percent of registered state voters who cast ballots in recent presidential elections.

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.

Minnesota's Secretary of State Mark Ritchie told WCCO on Sunday that St. Louis County could delay statewide Election Day results more than previous elections. Ritchie said three write-in candidates looking to replace former state Rep. Kerry Gauthier will have to be hand counted. “We estimate that this may go to 1 a.m., 2 a.m., perhaps a little bit longer, in the morning,” he said.

100 days before Election Day 2012, opponents of the marriage amendment embarked on a three-day phone blitz aimed at reaching 100,000 voters. Supporters of the amendment that would change the Minnesota Constitution to effectively ban gay marriage say they don't have to make as much noise. But they're quietly working to identify supporters and make sure they turn out at the polls.

Minnesotans on Tuesday flocked to the polls in record numbers, over 2.9 million – a record. About 76 percent of eligible voters participated, which was lower than the 78 percent in 2008.

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.