Gay marriage ad features National Cathedral dean

WASHINGTON (AP) - The dean of Washington National Cathedral is speaking out in support of gay marriage in a new advertisement airing ahead of next week's Supreme Court arguments on same-sex marriage.

The Respect for Marriage Coalition, which advocates for gay marriage rights, announced the ad Friday. The ad says a growing number of Americans believe it's time to allow marriage for gays and lesbians. It features people talking about their gay friends and neighbors.

The $150,000 ad buy is part of a larger $1 million campaign. It will air on stations in Washington around the Sunday political talk shows and the following weekend.

The Very Rev. Gary Hall announced in January that the National Cathedral will begin hosting same-sex marriages. He plans to speak at a rally Tuesday at the Supreme Court.