Supporters of same-sex marriage Suzanne Blackburn, left, and Ann DiMella, of Portland, prepare to set up a NO on 1 sign in Deering Oaks Park, Tuesday, Nov. 3, 2009, in Portland, Maine. Voters will decide Question 1, the proposal to rescind the Legislature's approval of same-sex marriage. (AP Photo/Robert F. Bukaty)AP – Gay marriage was put to a vote in Maine on Tuesday in a closely watched referendum that gay-rights activists across the country hoped would prove for the first time that their cause can prevail at the ballot box.