One of the issues where religious believers have the least sympathy for atheists and church/state separation is the Pledge of Allegiance. This isn't hard to understand because it's one of the most prominent forms of religious privilege, but it's also one of the starkest ways in which anti-atheist bigotry is both promoted and accepted in American society. Every day children recite a religious oath which devalues the patriotism and equality of atheists. Barack Obama supports this completely.
Read Article: Barack Obama on the Pledge of Allegiance: Equality vs. Privilege in School