Today's likeliest flashpoint at the Capitol is the first legislative hearing on a constitutional amendment that would ban same-sex marriage in Minnesota, something Republicans have been trying to get on the ballot since 2004.

The Senate Judiciary Committee meets at noon to consider the bill, introduced by GOP leaders earlier this week. If approved by voters next year, it would define marriage as being solely between a man and a woman, something already part of state law. Advocates for gays and lesbians have been organizing all week, urging supporters to jam the hearing.

Elsewhere on the constitutional amendment front, the House Government Operations Committee holds a hearing on a proposal that would require voters to show a photo identification card before casting their ballots, a measure that passed the Senate on Thursday/.

A conference committee will work through the omnibus environmental bill.

Gov. Mark Dayton has no public events scheduled, but will hold his monthly meeting with members of his cabinet.

And if it's Friday, it's time for the weekly legislative spin: Leaders of both parties will hold their weekly dueling press conferences.