NASHVILLE, Tenn. (AP) — A Southern Baptist leader is apologizing for the hurt caused when he accused President Barack Obama and other black leaders of exploiting Trayvon Martin's death for political gain.Richard Land also issued an apology for not telling listeners to his radio show that several of his comments were not his own, but were taken from an editorial in the Washington Times.Land calls the lack of attribution an oversight and said there was a link to the editorial on his website.Also Monday, Land sent a letter to the Southern Baptist Convention's president expressing "deep regret for any hurt or misunderstanding" caused by his comments about the unarmed black teen's shooting death.The remarks come as the denomination attempts to broaden its appeal beyond its traditional white, Southern base.