While Trump was visiting Brussels on his first European trip as president, Barack Obama spoke in Berlin Thursday. He never mentioned Trump by name but said countries should not hide behind walls. He also expressed concern that progress made on healthcare reform in the United States will soon be rolled back.

Barack Obama: “Certainly, I have some regrets that we weren’t able to get everyone healthcare. And obviously, some of the progress we made was–is now imperiled, because there’s still a significant debate taking place in the United States. But the point, though, is, is that for those 20 million people, their lives have been better. And we’ve set a standard of what’s possible that people can then build on.”

Obama’s remarks came a day after the Congressional Budget Office said the new Republican healthcare plan would cause 23 million people to lose their healthcare by 2026.