Former Arkansas Governor Mike Huckabee has repeated the claim that gay parenting is a dangerous “social experiment.”

Last year, the possible 2012 GOP nominee for president stirred up controversy when he said that he disagreed with gay parenting because children “are not puppies.”

“We should act in the best interest of the children, not in the seeming interest of the adults,” he told The Perspective, a publication of the College of New Jersey, then added, “Children are not puppies. This is not a time to see if we can experiment and find out, how does this work?”

In A Simple Government, a new book released last week, Huckabee repeated the claim.

“I believe that we're in denial about potential problems as we see more and more homosexual couples raising families,” he wrote. “Essentially, these are experiments to see how well children will fare in such same-sex households. It will be years before we know whether or not our little guinea pigs turn out to be good at marriage and parenthood.”