The Colorado senate passed the state's civil unions bill Thursday morning in a 23-12 vote, the Associated Press reports.
Three Republicans joined Democrats in supporting the bill following two rounds of heated debate.
During adiscussion of the bill on Wednesday, only one Republican voiced opposition to the bill. More spoke out on Thursday. The bill was introduced by openly gay Sen. Pat Steadman (pictured).
Writes the AP: "They emphasized their concerns that civil unions would undermine marriage and go against the wishes of voters. Voters rejected a domestic partnership referendum in 2006 and also banned gay marriage the same year."
The bill now heads to the House.
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