The Maryland senate judicial proceedings committee will hold a hearing on the marriage equality bill early Tuesday afternoon.

Advocates including statewide LGBT group Equality Maryland plan to speak out for the bill in advance of the hearing, which begins at 1 p.m. The hearing can be heard live here.

According to the Associated Press, “Supporters are likely to face their greatest hurdle in the Senate, where they would need 29 of the chamber’s 47 lawmakers to break a filibuster and 24 votes to advance the measure to the House.”

Currently, 20 senators, including Republican Allan Kittleman, who broke ranks with his party, support the measure. The bill was introduced with 18 cosponsors including senate majority leader Rob Garagiola, a first-time backer of the measure. Last week, Republicans decided as a caucus to oppose the bill.

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