Advocates confident of sweep in Md., Maine, Minn., Wash. battles
77 percent of gays backed Obama while 23 percent voted for Romney
Tisei loses tight contest to incumbent Democrat
Sinema holds 1 point advantage with all precincts reporting
Anti-gay effort defeated at ballot
Marriage opponents launched effort to unseat justices
'We are standing here as equal citizens'
Romney concedes after long, bruising campaign
First openly gay member of the Senate
Pocan cruises to victory in heavily Democratic district