evidence: FACT CHECK: Biden Claims 21 Million Americans Are Covered By ACA, A 9 Million Increase Since Taking Office President Joe Biden said in April 3 remarks that 21 million Americans are covered through the Affordable Care Act (ACA), an increase of 9 million since he took office. [...] During the same remarks, Biden claimed 21 million Americans are now covered through the Affordable Care Act, a 9 million increase since he took office in 2021. "Today, 21 million Americans are covered through the Affordable Care Act, 9 million more than when I took office," he said.