President Donald Trump on late Sunday continued his criticism on the representative of Baltimore district, accusing Democrats of trying to play the race card.

“There is nothing racist in stating plainly what most people already know, that Elijah Cummings has done a terrible job for the people of his district, and of Baltimore itself. Dems always play the race card when they are unable to win with facts. Shame!” Trump tweeted.

Trump’s tweets on Saturday charged that Cummings’ district is “considered the worst run and most dangerous anywhere in the United States.”

The president on Sunday asserted that, “There is nothing wrong with bringing out the very obvious fact that Congressman Elijah Cummings has done a very poor job for his district and the City of Baltimore,” and “the facts speak far louder than words.”

Condemnation followed from Democrats over the weekend, including Nancy Pelosi and some of the party’s presidential candidates.

In his direct response to Trump on Twitter, Cummings said: “Mr. President, I go home to my district daily. Each morning, I wake up, and I go and fight for my neighbors. It is my constitutional duty to conduct oversight of the Executive Branch. But, it is my moral duty to fight for my constituents.”

The president on late Sunday insisted there was nothing racist about his criticism and tweeted back, “If racist Elijah Cummings would focus more of his energy on helping the good people of his district, and Baltimore itself, perhaps progress could be made in fixing the mess that he has helped to create over many years of incompetent leadership.”

“His radical “oversight” is a joke!” Trump added.

In the interviewed on “Fox News Sunday” and CBS’ “Face the Nation,” acting chief of staff Mick Mulvaney insisted that Trump was not making racist comments. But Mulvaney, a former congressman, said he understood why some people could perceive Trump’s words as racist.

“Instead of helping people back home, they’re focusing on scandal in Washington D.C., which is the exact opposite of what they said they would do when they ran for election in 2018,” Mulvaney said, pointing at Democrats who now control the House.

He asserted that Trump’s barbs were a reaction to what the president considered to be inaccurate statements by Cummings about conditions in which children are being held in detention at the U.S.-Mexico border.

At a hearing last week, Cummings accused a top administration official of wrongly calling reports of filthy, overcrowded border facilities “unsubstantiated.”

“When the president hears lies like that, he’s going to fight back,” Mulvaney said.

Mulvaney said that Trump would criticize any lawmaker, no matter the person’s race, in a similar way if Trump felt that individual spoke unfairly about the president’s policies.

“The president is pushing back against what he sees is wrong,” he added. “It’s how he’s done it in the past and he’ll continue to do it in the future.”

Includes reporting from the Associated Press.