The idea of Obama being Muslim stems from the fact that his father, a man he barely knew, was born into a Muslim family. By the time Obama was born, his namesake was already a “confirmed atheist.” (His mother Ann Dunham, apparently was both ecumenical and tended towards secularism.) Obama’s stepfather, Lolo Soetoro, was a non-practicing Muslim. From all accounts, not just from Obama but family friends, the future president’s religious and educational life were dominated by his mother and his Christian maternal grandparents.
(The president’s also simultaneously accused of being a communist. Communists generally are atheists. You can’t at the same time be an atheist and be a devoted worshipper of Allah. Radical Muslims called the Mujahideen, of course, fought a long bitter war against Soviet communists in Afghanistan in the 1980s. How one can be simultaneously a follower of a radical Christian minister, a fanatical Muslim, and a communist escapes me, but then again I am being silly by assuming that logic is a factor in Tea Party Republican thinking.)
The Republicans elected from Mississippi and Alabama since the 1960s have not covered themselves in glory on civil rights issues. Longtime Mississippi Senator Trent Lott (first elected to the U.S. House in 1973 and a member of the Senate from 1988 until 207) was a frequent speaker at meetings of the Council of Conservative Citizens, a group long known as the “Uptown Klan.”