“Almost from its inception, the [Hospital Insurance (HI)] Trust Fund has faced a projected shortfall. The insolvency date has been postponed a number of times, primarily due to legislative changes that have had the effect of restraining growth in program spending. The 2016 Medicare trustees’ report projects that, under intermediate assumptions, the HI Trust Fund will become insolvent in 2028, two years earlier than estimated in the prior year’s report.” [Report No. RS20946, dated Oct. 5, 2016.] Congressional Research