By Barbara Rodriguez, The Associated Press DES MOINES, Iowa — Jason Sanford has heard so many rumors about the changing health care landscape that every few weeks he dials a local information desk, seeking just a rough estimate of what his diabetes medication will soon cost him. The answer is the same every time: It’s too early to say, even with the next open enrollment period under the Affordable Care Act beginning in two weeks. “It’s just hearsay,” said the 55-year-old sales representative from Davenport.