The Affordable Care Act (ACA) set out to make healthcare more affordable. It had various effects on Medicare, such as improving coverage and eliminating the drug coverage gap (also called the donut hole). More than 68 million people in the United States are enrolled in Medicare, according to the Centers for Medicare & Medicaid Services.

Former President Barack Obama was cheered by diners when he arrived at a hip Washington, DC, restaurant without his wife, Michelle, this week — as wild, unfounded rumors swirled about a possible ...