A neurosurgeon who believes the human brain is too complex for anyone but God, an ophthalmologist who refuses to talk about the age of the Earth, and a Harvard-trained lawyer beloved by creationists are running for president of the United States, raising the prospect of an election without science.
Retired doctor Ben Carson joined senators Rand Paul (the ophthalmologist) and Ted Cruz (the Harvard alum) on the campaign trail on Monday, vying for the Republican nomination against each other and other confirmed and likely candidates including Senator Marco Rubio, former Florida governor Jeb Bush and Wisconsin governor Scott Walker.