Minnesota's Biggest Obamacare Insurer Leaves Exchange
PreferredOne was the least expensive insurer in the Minnesota's state-run Obamacare exchange last year. It was also the most successful at signing up customers, capturing 59 percent of the state's market for private plans, according to CBS Minnesota.

And now it's leaving the exchange, and the 30,000 people who had enrolled in its coverage.

As Jed Graham from Investor's Business Daily explains, this was due to an unusual feature of Obamacare in Minnesota—the existence of a "basic health program" option for lower-income households. ...