A bill to legalize same-sex marriage won approval in the Maryland House of Delegates on Friday night, capping a dramatic turnaround from a year ago and all but assuring the measure will be sent to Gov. Martin O’Malley (D) for his promised signature.

After a day of emotional and contentious debate, the Democrat-led House voted 71-67 in favor of the bill, sending it to the Senate, which approved a similar measure last year. No senators have announced plans to change their votes.

— Same-sex marriage bill passes Maryland House of Delegates