Ames, Iowa | Tyler Raygor rapped on the door of a grey, one-storey house in a neighbourhood in northern Ames, Iowa, and waited until a man in a hoodie and jeans appeared before launching into his pitch.
The man, Mike Morton, said he was leaning toward voting for Florida governor Ron DeSantis or former president Donald Trump in next month’s caucuses. But had he considered Nikki Haley, the former governor of South Carolina? No, Mr Morton admitted, he hadn’t given her much thought.