The ACLJ can be a bit reactionary at times, but they have this right.

Religious
Freedom of Speech Petition

“Churches and Christian organizations should be free to take strong positions
on moral issues, even issues of political consequence, for the sake of our nation’s
spiritual health. The Internal Revenue Service should not have effective censorship
power over religious speech by wielding the power to deny tax-exempt status to a
religious organization. ”

Update: The original link is dead, but I think this one is pretty similar in content.