From the NYT's Cityroom blog:

With only weeks to go before the end of the legislative session in June, a senior Democratic lawmaker in the New York State Assembly introduced legislation on Tuesday to legalize same-sex marriages, signaling that Assembly lawmakers were unwilling to wait for efforts by Gov. Andrew M. Cuomo and gay rights groups to pull together enough votes to move the measure through the Republican-controlled State Senate.

The move came as a national group opposing same-sex marriage, the National Organization for Marriage, pledged to spend $500,000 on an advertising and lobbying campaign to defeat same-sex marriage legislation and $1 million to defeat state lawmakers who vote for the bill.

This is not a done deal - which means we have to be all the more active in opposing their efforts to redefine marriage (emphasis ours):

... at a time when no Senate Republican has yet voiced support for a same-sex marriage bill — and prospects for victory seem uncertain at best — Mr. Cuomo has held off, with the apparent support of advocates and Senate Democrats who support the bill.

Related: NOM Launches $500,000 Ad Campaign in New York (Includes Video); Pledges $1 Million in 2012 Elections