Is Iowa Obamacare’s canary in the coal mine? Not really.

In April, two large insurers, Wellmark and Aetna, said they would not offer health insurance policies on Iowa's federal health insurance marketplace in 2018. Medica, the only remaining insurer, recently said it too might pull the plug next year. ...
http://www.politifact.com/truth-o-meter/article/2017/may/24/iowa-obamacares-canary-coal-mine/