Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Biden Defends Civil Rights Record During NAACP Appearance Reuters DETROIT - Democratic presidential front-runner Joe Biden defended his civil rights record on Wednesday, reminding a crowd of black leaders of his close relationship with Barack Obama while backing away from his work on the 1994 crime bill. Biden has been under fire in recent weeks from black rivals Kamala Harris and Cory Booker on racial issues. He said Obama, the first black U.S. president, would not have chosen him to be his vice president if he was bad on civil rights. "They did a significant background check on me for months with 10 people. I doubt whether they would have picked me if these accusations about me being wrong on civil rights were correct," Biden told the annual convention of the NAACP, the nation's oldest civil rights organization. He rejected the idea he was using Obama as a "crutch," however, saying his administration would not just be a continuation of Obama's. Biden's early lead in the nominating contest has been fueled in part by strong support from black voters, who remember his service for eight years as vice president for Obama. But Biden has slipped in the polls after a confrontation at the first debate last month with Harris, who criticized his opposition to federally mandated busing to integrate schools in the 1970s and his willingness to work with segregationist senators. .