A Maryland Senate panel is expected to vote Tuesday on Governor Martin O'Malley's plan to make Maryland the eighth state to legalize gay marriage, ABC affiliate WJLA reported.

The vote comes just days after the measure narrowly cleared the House of Delegates.

The Judicial Proceedings Committee is expected to approve the bill and send it to the full Senate later this week. A similar measure last year year cleared the Senate before it fizzled in the House.

“I don't think anybody's vote is going to change,” said Mary Ellen Russell, executive director of the Maryland Catholic Conference, an opponent of the legislation. “I think it would be unlikely. It's happened before but I would expect that a majority of the Senate still supports it.”

Catholics lined up on Monday to discuss the issue with senators.

“What's concerning so many people is the haste with which this is happening and I think that's really woken up their urgency to come down and say slow down for just a second and think about this,” Russell said.

The committee held a marathon public hearing on the proposed legislation earlier this month.

The Senate could vote on the measure as early as this week.