UPDATE: New York Senate voted to legalize same-sex marriage 33-29 Friday evening.
Watch the New York State Senate live. A vote is expected on a same-sex marriage bill tonight
If gay marriage passes in N.Y. tonight, it will more than double the number of Americans living in states with marriage equality, New York Times blogger Nate Silver tweeted earlier
WNYC has some more background and a timeline of gay marriage in New York, from 2004 to today.