The study shows the dramatic negative impact of raising the Medicare eligibility age to 67—assessing the impact on uninsured rates if the ACA remains in place and if it is repealed. The author looks at the impact for ages 65-66 by gender and race/ethnicity, with all demographic groups showing major percentage increases in the uninsured—escalating from the current rate of approximately 1% to 18% with the Affordable Care Act in place, and 30-42% if it is repealed.