"Democrat Congresswoman totally fabricated what I said to the wife of a soldier who died in action (and I have proof)".
"If you are the leader of the free world, if you are president of the United States and you want to convey sympathy to a grieving family, a grieving widow, you choose your words carefully", she said. Johnson's widow Myeshia Johnson, the master sergeant, the late sergeant's aunt and uncle, and Wilson's driver were also in the limousine, Wilson said.
La David Johnson was one of four American soldiers killed almost two weeks ago; Trump made a telephone call to the families on Tuesday.
But Sergeant Johnson's mother, Cowanda Jones-Johnson, told The Washington Post she was present during Mr Trump's call and supported the congresswoman's account of Mr Trump's comment.
President Donald Trump earlier unleashed controversy this week when he said that his predecessors, including President Barack Obama, did not personally call families of fallen soldiers, a statement refuted by Obama officials.
Trump started the storm this week when he claimed that he alone of USA presidents had called the families of all slain soldiers.
At a press spray Wednesday morning, the president folded his arms like a petulant four-year-old when reporters questioned him about the he-said/she-said.
"It's disgusting that the media is taking something that should be recognized as a generous and honest gesture, made privately by the President, and using it to advance the media's biased agenda", she said. Footage of the flag-draped casket with Johnson's remains arriving at Miami International Airport - and his widow's emotional reaction - has been playing on a loop on television news since Tuesday.
The White House has also not offered comment on why these nine families have not been contacted as yet.
Donald Trump has denied making insensitive remarks to the grieving widow of a man killed in Niger.
The president's response shocked him. You can say, 'I'm so sorry for your loss.
Kelly is "intensely private about not only his own service but certainly what happened to his son", Panetta said.
Trump still insists the congresswoman was lying, though he has specifically responded to the families who've made similar claims just yet. Advocates expressed weariness at yet another dead soldier's family being drawn into a political fight, and said they refused to be drawn into the increasingly heated debate.
"You could ask Gen. Kelly, did he get a call from Obama?" Trump said on Fox News radio. "When he makes his call, he can cut his call short by saying, 'I'm sorry, your son was a hero, ' even though he already said he doesn't think people who are caught or killed are heroes".
Mr Kelly was the highest-ranking military official to lose a child in the Iraq or Afghanistan wars.