The Catholic Church and the Church of Jesus Christ of Latter-day Saints are among scouting's biggest backers, Boy Scouts of America says. In 2011, Mormon-backed Cub Scout and Boy Scout troops accounted for more than 420,000 of all Scouts nationwide. More than 200,000 Scouts were members of units affiliated with the Catholic Church.

President Barack Obama -- the honorary head of the Scouts, as is every president -- supports gay and lesbians in Girl and Boy Scouts, as does former Republican presidential nominee Mitt Romney, a Mormon.

Last year, the Girl Scouts allowed a transgender member into a troop, sparking a cookie boycott.