Retired chemist Edward Schokowitz was incredulous when he received a letter from Horizon Blue Cross Blue Shield of New Jersey early last month saying his Medicare Advantage Plan, which had no premium, would be eliminated next year.“They took all the senior citizens and threw us out of the plan. They now want to give us the same plan for $153 [per month],” he told the Daily Caller. “The President said you can’t be kicked out of your plan. He lies.”Schokowitz is one of many Medicare beneficiaries now learning that — like Americans who buy insurance on the individual market —...