Today Illinois could become the 13th state in the US to legalize same-sex marriage.

The Illinois General Assembly adjourned last night (Thursday) without calling for a vote on SB10, the the Religious Freedom and Marriage Fairness Act, and today is the last day for House representatives to vote before the session adjourns for the summer.

Marriage equality supports are told to call House Speaker Madigan to call the vote at (773) 581-8000. Today’s legislative session is due to begin at 9:30 am (Central Time).

Though the marriage equality bill has already passed in the Illinois Senate, 60 votes are needed in the House in order for the bill to move to Governor Pat Quinn for signature.

Earlier this month, Illinois Governor Pat Quinn said ‘it’s time to vote’ on gay marriage.

President Barack Obama has also reiterated his support for the Illinois marriage equality bill.

Though he has not signed executive order to legalize same-sex marriage nationwide, President Obama has thrown his support behind individual states’ campaigns for marriage equality.

When Obama was actually in the Illinois legislature, he responded to a gay newspaper’s questionnaire in 1996 with the statement: ‘I favor legalizing same-sex marriages, and would fight efforts to prohibit such marriages.’