Becomes first openly gay U.S. senator
But balance of power will likely prevent action on LGBT bills
All four states voting on same-sex marriage measures rejected anti-gay arguments election night
77 percent of gays backed Obama while 23 percent voted for Romney
Anti-gay effort defeated at ballot
Marriage opponents launched effort to unseat justices
Openly gay entrepreneur and philanthropist takes solid Democratic district
Romney concedes after long, bruising campaign
Dem hopeful pledged to lead on LGBT issues
Dem gubernatorial candidate wins in contest against Lamontagne