The Obama White House: Five years after the Affordable Care Act passed, 30 million young adults can no longer be denied coverage for a pre-existing condition, 105 million Americans no longer have a lifetime limit on their health coverage, and 76 million Americans are benefiting from preventive care coverage.

Why do presidents use so many pens to sign legislation? White House Staff Secretary Lisa Brown explains.with the signing of the Affordable Care Act by President Obama.