Final vote on measure expected before end of the month
In first, a State of the Union includes 'lesbian,' 'bisexual' and 'transgender'
Supreme Court to take up same-sex marriage
Briefs from DOJ and GOP could prove influential
A ruling impacting all 50 states could be on the way
Cases placed on hold until Supreme Court issues decision later this year
Mexicali officials blocked men's previous attempts to marry
Comments seen as attack against same-sex marriage
Supreme Court expected to act on gay nuptials by mid-year
Justices start process for nationwide ruling on right to gay nuptials