WASHINGTON — Video of a 2015 speech delivered by Representative Frederica S. Wilson revealed Friday that John F. Kelly, the White House chief of staff, misrepresented her remarks when he accused her of bragging about securing $20 million for a South Florida F.B.I. building and twisting President Barack Obama’s arm.
Ms. Wilson, in an interview on Friday, called Mr. Kelly a liar and hinted strongly that the altercation, prompted by a call from President Trump to the widow of a fallen black soldier, was racially charged.
“The White House itself is full of white supremacists,” she said.
Mr. Kelly, escalating a feud between Mr. Trump and Ms. Wilson, had cast the congresswoman on Thursday as a publicity-seeking opportunist. However, the video, released by The Sun Sentinel, a newspaper in South Florida, showed that during her nine-minute speech, Ms. Wilson never took credit for getting the money for the building, only for helping pass legislation naming the building after two fallen federal agents.
She never mentioned pleading with Mr. Obama, and she acknowledged the help of several Republicans, including John A. Boehner, then the House speaker; Representatives Mario Diaz-Balart and Carlos Curbelo; and Senator Marco Rubio.
“I feel very sorry for him because he feels such a need to lie on me and I’m not even his enemy,” Ms. Wilson said of Mr. Kelly. “I just can’t even imagine why he would fabricate something like that. That is absolutely insane. I’m just flabbergasted because it’s very easy to trace.”
“They are making themselves look like fools. They have no credibility,” she said. “They are trying to assassinate my character, and they are assassinating their own because everything they say is coming out and shown to be a lie.”
Mr. Trump and his top aides remained defiant Friday in the face of the escalating criticism about the way he and Mr. Kelly have handled the sensitive subject.
After a late-night tweet on Thursday from Mr. Trump in which he called Ms. Wilson “wacky,” aides continued to insist that Mr. Kelly had told the truth when he attacked the congresswoman.