Supporters of gay marriage are expected to kick off a campaign today for a 2016 ballot initiative to legalize gay marriage in Michigan.

The Detroit News reports organizers of the "Michigan for Marriage" campaign will launch petition drives in Metro Detroit, Lansing and Grand Rapids In March, U.S. District Judge Bernard Friedman struck down the state’s constitutional ban on gay marriage.

But the Sixth Circuit Court of Appeals stayed Friedman's order at the request of state Attorney General Bill Schuette.

No date has been set on when oral arguments will be heard in the case.

Supporters of gay marriage say attitudes toward same-sex unions have softened since Michigan residents approved the Michigan Marriage Amendment in 2006 and believe voters would now support the legalization of same-sex marriages.