Chicago Mayor Rahm Emanuel is pushing for passage of a gay marriage bill in the Illinois House.

The measure, which aims to make Illinois the 10th state to legalize such unions, cleared the Illinois Senate on Valentine's Day and a House committee last week.

But the House is far from sewn up. In fact, Chicago Magazine counts only 14 members as certain to vote for the bill. Another 29 are listed as likely to vote for the bill and 20 remain on the fence. Sixty votes are needed to clear the chamber.

“The clock is ticking,” Emanuel wrote in an email to supporters. “The House is poised to vote … in the coming days. And I know from talking with several of my friends in Springfield that some members of the House still haven't decided which way they'll vote.”

“If we're going to pass this bill, it's crucial that members of the House hear from marriage supporters every single day until the freedom to marry becomes law in Illinois.”

“Real change happens when citizens stand strong, tell their stories and urge their lawmakers to do what's right. … What happens in the next week is up to you. Let's do what it takes to bring home a victory for the thousands of Illinois families who are counting on us right now.”

State Rep. Greg Harris, a Democrat from Chicago and the bill's champion in the House, refused to divulge the current headcount on the bill in the House but he did tell the Chicago Sun-Times that when he calls the measure for a vote “it will pass.”