SPRINGFIELD -- Illinois approved civil unions in 2011. At the time, same-sex advocates said they were happy with that compromise, but they say public opinion has changed since then.
Under the measure passed Tuesday, the definition of marriage would change from "an act between a man and woman" to one simply "between two people."
As for what's next, Governor Quinn has already stated he would sign the bill once it makes it to his desk. If he does that, the law will take effect in June.
SPRINGFIELD -- It's a history making day in the state's capital. Illinois is poised to become the 15th state in the U.S. to legalize same-sex marriage. The vote in the Illinois House came late Tuesday afternoon. It barely passed.
SPRINGFIELD -- Marriage equality moves forward in Illinois. The House approved same-sex marriage Tuesday afternoon, but it isn't a done deal yet.
Lawmakers changed the marriage bill and pushed back the effective date to summer. But, for couples who've been waiting decades, they say six more months isn't a big deal.
The Senate still has to concur with the House changes. They're voting across the hall and are expected to pass it.
Governor Quinn has already said he will sign it into law as soon as he can.
Copyright 2015 Nexstar Broadcasting, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.