Gay marriage advocate Beth Robinson, center, holds back tears following the passage of a gay marriage bill in Montpelier, Vt. , Tuesday, April 7, 2009. Vermont has become the fourth state to legalize gay marriage. The state legislature voted Tuesday to override Gov. Jim Douglas' veto of a bill allowing gays and lesbians to marry. The vote was 23-5 to override in the state Senate and 100-49 to override in the House. Under Vermont law, two-thirds of each chamber had to vote for override. At left is Sherry Corbin and at right is Susan Murray.