Back in 2009, when Terry Branstad was president of Des Moines University in Iowa, he found himself increasingly unhappy with the way his state was being run. He knew a thing or two about it: as governor between 1983 and 1999, he had steered Iowa through the farm crisis and on to a prosperous economy with a 2.6% unemployment rate. But with a comfortable university perch and a solid legacy as a public servant, politics did not beckon. That was until two law students started a Facebook campaign to draft him to run for governor again. When about 10,000 young people had joined, Mr Branstad knew he had to do something. He resigned as president that October, and in little more than a year was being sworn in for his fifth term.
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