Wisconsin Gov. Scott Walker, speaking at Chatham House in London, was asked Wednesday by a British moderator if he believes in evolution. He chose not to answer.

“I’m going to punt on that one as well,” Walker said after being asked if he was comfortable with the idea of evolution, and if he believes in it. “That’s a question a politician shouldn’t be involved in one way or the other.”

In a statement later Wednesday obtained by Milwaukee Journal Sentinel, Walker said “Both science and my faith dictate my belief that we are created by God” and that “I believe faith and science are compatible, and go hand in hand.”

Walker isn’t the first likely presidential candidate to get potentially tripped up by a question while in the U.K. this month. On February 2, New Jersey Gov. Chris Christie found himself in a storm of criticism when he suggested that there should be “balance” in the vaccine debate between parents and the government. The clear lesson here for politicians: be careful when you go to London! Or, alternatively, keep on traveling across the Atlantic to make sure people back home have something to talk about.

This story has been updated to reflect new comments from Scott Walker.