President Barack Obama hosts the second-annual White House Student Film Festival in the East Room of the White House, in Washington on March 20, 2015.
Martin H. Simon—Pool/Corbis
March 25, 2015 11:47 AM EDT

President Obama had a simple message on the fifth anniversary of the Affordable Care Act: It’s working.

Speaking in the Executive Office Building next to the White House, Obama argued that his signature health care law was “working better than many of us — including me — anticipated” at increasing health insurance rates and improving the quality of care.

“The bottom line is this for the American people: this law is saving money for families and for businesses,” he said. “This law is also saving lives, lives that touch all of us. It’s working despite countless attempts to repeal, undermine, defund and defame this law.”

In particular, Obama highlighted a government report that showed that fewer mistakes in hospitals saved the lives of 50,000 people between 2011 and 2013, which the White House partly attributed to initiatives to reduce accidental overdoses, bedsores and patient falls.

The remarks came just two days after Texas Sen. Ted Cruz promised to repeal “every word of Obamacare” in a speech launching his presidential campaign, the first Republican to join the 2016 race.

Obama took the opportunity to take a few shots at Republican critics of the law, joking that “death panels, doom, [and] a serious alternative from Republicans in Congress” have all failed to materialize and challenging candidates campaigning for repeal to explain how “kicking millions of families off their insurance” will strengthen the country.

“Making sure that the Affordable Care Act works as intended to not only deliver access to care but to improve the quality of care and the cost of care, thats something that requires us all to work together,” he said.

Write to Nolan Feeney at nolan.feeney@time.com.

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