Never insult Iowa farmers. In a recent election for a Senate seat in the Midwestern swing state that gave Jane Smiley a home for 24 years, the Democratic candidate - a trial lawyer - blundered badly by dissing the sons of the soil. Bad move. The candidate, Bruce Braley, duly lost heavily to Republican Joni Ernst.
"Iowa is a kind of naturally centrist state," Smiley says, as we speed on a train through England's rolling farmland on the way to a bookshop event in Bath. The novelist taught at Iowa State University for 15 years, after studying for two higher degrees there. The plains and hills tilled by those despised farmers furnish the backdrop to some of her best-loved works. From the Pulitzer Prize-winning A Thousand Acres, with its mesmeric transposition of King Lear into the Iowa badlands, to the uproarious campus satire of Moo, she found fertile ground in the scorned Midwest. For her, Iowa is "this interesting middle ground. People there are very well read and they do pay attention. They would say, and I would agree, that they always hope to do the right thing."
Born in 1949, and raised outside St Louis, Missouri, Smiley studied for her first degree at Vassar College. She moved to Iowa for a masters followed by a PhD, before starting to teach. In 1980, her debut novel, Barn Blind, introduced the equine theme that recurs in her young-adult stories and Horse Heaven, her Dickensian panorama of the racing world. But this famous literary equestrian no longer breeds horses, and now finds that the "generalised criminality" of the US racing scene has spoiled the fun of the track.
Horses aside, the Nordic world of the sagas - a subject of her postgraduate research - became another rich source. Above all, in The Greenlanders she achieved an extraordinary re-creation of Viking life beyond the Arctic Circle. When this virtuoso of fictional genres meets her fans, they adore one book, or another. However, "Nobody ever said, 'I love both Horse Heaven and The Greenlanders!' But that's okay. I'm very curious about form. I'll read Wodehouse one day and Trollope the next - they seem to have written the same thing over and over, but then you see that they were trying new things out."