Evolutionary biologist Nick Gotelli refuses to debate someone from the Discovery Institute:
Academic debate on controversial topics is fine, but those topics need to have a basis in reality. I would not invite a creationist to a debate on campus for the same reason that I would not invite an alchemist, a flat-earther, an astrologer, a psychic, or a Holocaust revisionist. These ideas have no scientific support, and that is why they have all been discarded by credible scholars. Creationism is in the same category.