At 68, and using a walker, the congressman said he doesn’t have time for those who criticize the city where he grew up. He wants to hear from people willing to help make the community better. The park was built on a formerly vacant lot often filled with trash.

“Do not just criticize us. Come to Baltimore,” he said, “and I promise you will be welcome.”

Trump lashed out in tweets at Cummings, calling his district a “disgusting, rat and rodent infested mess.”

Cummings chairs the powerful House Oversight and Reform Committee, one of the committees investigating the president and his administration.

He said Saturday that he is not calling for Trump’s impeachment. “I want to be fair to him, too,” Cummings said.