Less than four months after a gay marriage bill was suddenly shelved in the Maryland House after passage in the Senate proponents are preparing a new effort, The Washington Post reported.

Backers are expected to unveil a broader campaign to win marriage equality in the state on Tuesday.

“We all started running toward getting a bill passed without building a campaign in advance,” said openly lesbian Delegate Heather R. Mizeur. This time “we'll be running a very aggressive campaign that targets specific districts and regions where we need to shore up our vote count.”

While details are hard to come by, proponents appear to have taken notes from New York's successful campaign, which included creating the umbrella group New Yorkers for Marriage Equality, a coalition of nationwide and regional stakeholders.

The push in Maryland will be spearheaded by the nascent group Marylanders for Marriage Equality, which will include Equality Maryland, Freedom to Marry, Progressive Maryland, labor unions Service Employees International Union and Communications Workers of America, and the American Civil Liberties Union.

Also involved is the nationwide gay rights group Human Rights Campaign (HRC), the group behind the yearlong – seemingly unending – campaign of celebrity video endorsements. In New York, Brian Ellner helmed HRC's push. No word yet on whether he's headed for Maryland.