UnitedHealth Group CEO Stephen Hemsley said in a call with investors Tuesday (July 19) that United lost an additional $200 million on the exchanges in the second quarter of 2016, which, when combined with what was lost in the first quarter, is a loss about $325 million greater than was expected at the beginning of the year. Hemsley also reported that United's plan to exit exchanges in all but a few states remains on track and the company does not...