Church-state watchdog group Americans United for Separation of Church and State is urging the IRS to investigated “biased” voter guides for the presidential election.

In complaints filed with the IRS today, AU says the American Family Association and WallBuilders have made “guides” that “are clearly designed to promote Republican presidential candidate Mike Huckabee.” (Does Barry Lynn have the IRS on speed-dial yet?)

The guides, which you can find on the groups’ Web sites, list a buncha issues, from “traditional marriage” to “business freedom.” Only Huckabee gets a “yes” stance on all the issues.

“I am particularly outraged that these voter guides indicate that they are suitable for use in churches and other tax-exempt organizations,” said AU’s Barry Lynn. “They are not. Any church that distributes these biased guides is risking it’s tax exeption and casting aside its integrity.”