PROVIDENCE — A final vote on same-sex marriage in Rhode Island could come before week’s end if a key legislative committee endorses legislation that would allow gay and lesbian couples to wed.
Supporters said they like their chances going into Tuesday’s pivotal vote in the Senate Judiciary Committee. If the committee votes to advance the legislation, the full Senate could take up the measure as early as Wednesday or Thursday. The House passed the bill in January.
‘‘We’re not there yet, but I do believe a majority of senators support granting civil rights to gay people,’’ said Senator Donna Nesselbush, Democrat of Pawtucket. Nesselbush, who is gay, is the lead sponsor of the legislation in the Senate.
The committee is also reviewing legislation that would put the question of gay marriage to the voters in next year’s election. The committee could vote to advance one or both bills.
The Senate has long been seen as the true test for gay marriage in Rhode Island, now the only state in New England without gay marriage. Senate President Teresa Paiva Weed opposes the bill, but has vowed not to obstruct debate. The Newport Democrat could exercise her power as the Senate’s leader by casting a vote in Tuesday’s committee meeting, but she told the Associated Press she would not do so.
Opponents are not giving up on efforts to turn back the legislation. Bishop Thomas Tobin, leader of Providence’s Roman Catholic Diocese, released a statement Monday urging the Senate to ‘‘stand strong in resisting this immoral and unnecessary proposition.
‘‘It is only with grave risk to our spiritual well-being and the common good of our society that we dare to redefine what God himself has created,’’ Tobin said.
‘I do believe a majority of senators support granting civil rights to gay people.’
Nine states and the District of Columbia now allow gay and lesbian couples to marry. Efforts to add Rhode Island to the list collapsed two years ago when it became apparent the legislation would not pass the Senate. This year, advocates mounted a coordinated political campaign that made use of phone banks, endorsements from politicians, business leaders, clergy, and hundreds of volunteers.
‘‘We are thrilled to be on the cusp of this critical vote and do believe we have a path to victory,’’ said Ray Sullivan, campaign director of Rhode Islanders United for Marriage.