Acting U.S. Citizenship and Immigration Services (USCIS) Director Ken Cuccinelli clashed Wednesday with Rep. Debbie Wasserman Schultz, D-Fla., after she accused him and President Trump of following a “white supremacist ideology” by allegedly trying to block non-Caucasian migrants from entering the U.S.

“My constituents, Americans across this country aren’t fooled by this administration’s specious attempts to distinguish between documented and undocumented immigration,” Wasserman Schultz told Cuccinelli at a House Oversight subcommittee hearing on the treatment of migrants.

KEN CUCCINELLI FLOATED AS LIKELY NEXT DHS CHIEF WITH MCALEENAN TO STEP DOWN

“You and Mr. Trump don't want anyone who looks or talks differently than Caucasian Americans to be allowed into this country,” she added.

“That’s false,” Cuccinelli shot back. He was then interrupted by the former Democratic National Committee chairwoman, who told him not to interrupt her, but he carried on: “That’s defamatory."

“Excuse me, there’s nothing defamatory about it,” she said.

Wasserman Schultz wasn’t done: “You want to block all immigration and make life harder for immigrants and you have demonstrated that you will pursue this heinous white supremacist ideology at all costs, even if it means making critically ill children your collateral damage in the process."

The hearing was held to discuss the administration's decision this summer to suspend a program that delayed deportations of some illegal immigrants who were seeking emergency medical treatment. The administration resumed the program in September after a backlash from Democrats and activists.

Wasserman Schultz also made a reference to the administration's public charge rule -- which restricts green cards to immigrants who are deemed likely to be reliant on welfare -- and asked how many children would be affected by the rule.

CUCCINELLI PUTS HARDLINE STAMP ON IMMIGRATION AGENDA, JUST 2 MONTHS INTO USCIS JOB

But Cuccinelli wanted to respond to her claim that he was pursuing a white supremacist ideology.

“After declaring that I am not a white supremacist, as you alluded, nor is the president ... ” he said.

“Facts matter,” Wasserman Schultz responded.

“Yes they do, truth matters,” Cuccinelli said

CLICK HERE TO GET THE FOX NEWS APP

When Wasserman Schultz said that was “why I am stating them here today,” Cuccinelli disagreed again.

“No you certainly are not, you are certainly cloaked in legislative privilege, which means you can get away with not telling the truth,” he said.

Cuccinelli is being closely watched as a possible successor to outgoing Homeland Security Secretary Kevin McAleenan. McAleenan's last day on the job is Thursday and an announcement of a successor is expected imminently.

It isn't Wasserman Schultz's first fight with a Trump immigration official. In a hearing last month, she accused former Immigration and Customs Enforcement (ICE) director Thomas Homan of giving "jingoistic, bigoted testimony."