In 2008, when George W. Bush was president, according to Gallup, 14.9 percent of adult residents of the United States lacked health insurance coverage. That increased to 16.2 percent in 2009, the year that Obama was inaugurated, and to 16.4 percent in 2010, the year that Obama signed his law requiring that all Americans have health insurance.
In the first half of this year, according to data released by Gallup today, the percentage of adults in the United States lacking health insurance ticked up to 16.8 percent.
That conclusion is based on Gallup's interviews with 177,237 American adults from January through June of this year. The interviews were part of the ongoing Gallup-Healthways Well-Being Index survey.
Obama signed the Patient Protection and Affordable Care Act on March 23, 2010. It mandates that all Americans must purchase government-approved health insurance plans by 2014. Under the legislation, families earning less than 400 percent of the poverty level will receive a federal subsidy to buy insurance.
The constitutionality of the mandate is being challenged in federal court by more than half of the states.