From the Providence Journal's politics blog:

The State House debate over same-sex marriage will play out in three forums on Wednesday: a press conference, a rally and then a House Judiciary Committee hearing.

It will begin with the 2:45 p.m. press conference called by [NOM Rhode Island].

Speakers will include Maggie Gallagher, the chairwoman of the National Organization for Marriage, Christopher Plante, the executive director of the local NOM chapter, Austin Nimocks, who is identified as the "Senior Counsel Alliance Defense Fund,''' Dr. Jennifer Roback Morse, president and founder of the Ruth Institute, which is described as a project of NOM, state Sen. Harold Metts and state Rep. Raymond Hull.

At the press conference, these opponents of same-sex marriage pledge a vigorous campaign to "defeat efforts by House Leadership and Governor Chafee to impose same-sex marriage on Rhode Island with no vote of the people,'' according to a statement issued by the national group.

...After the House adjourns for the day, the House Judiciary Committee hearing will begin on two bills. One would legalize gay nuptials. The other, backed by the opponents, seeks a referendum on amending the state Constitution to specifically limit marriage to a man and a woman. [source]