Gay-marriage support at record high

[TPreston]

A record-high 6 in 10 Americans support same-sex marriage and a similar share say individual states should not be allowed to define marriage as only between a man and a woman, according to a new Washington Post-ABC News poll.

The national debate on same-sex marriage moves to center stage next week, when the Supreme Court hears oral arguments on whether state restrictions on same-sex marriage are unconstitutional.

Courts across the country have agreed with gay-marriage advocates that a Supreme Court ruling in 2013, striking down the federal government