Barack Obama returned to the White House Tuesday for the first time since leaving office five years ago. Obama reunited with Joe Biden to mark the 12th anniversary of the 2010 Affordable Care Act, often known as Obamacare.

Barack Obama: “It’s prevented insurance companies from denying people coverage based on a preexisting condition. It’s lowered prescription drug costs for 12 million seniors. It’s allowed young people to stay on their parents’ plan until they’re 26. It’s eliminated lifetime limits on benefits, that often put people in a jam. So we are incredibly proud of that work.”

While Biden and Obama hailed the success of Obamacare, there are still 31 million uninsured Americans.