During a press conference on Thursday, White House Chief of Staff John Kelly criticized Congresswoman Frederica Wilson for her remarks slamming Donald Trump for what he said in a phone call to the grieving widow of one of the four US service members killed in Niger two weeks ago.

Kelly, a retired Marine general who lost his own son in battle, said that he was “stunned” when he heard Wilson’s criticism and had to take some time to himself at the Arlington National Cemetery to compose himself.

–Trump camp attacks congresswoman who shared his remarks to widow of fallen soldier–

“I was stunned when I came to work yesterday, and brokenhearted, when I saw what a member of Congress was doing,” he said. “What she was saying, what she was doing on TV. The only thing I could do to collect my thoughts was to go walk among the finest men or women on this Earth.”

Kelly also said during the press conference that he had told President Donald Trump what he was told when he lost his own son and that Trump had said something similar in his remarks to Sgt. La David Johnson’s widow.

“He was doing exactly what he wanted to do when he was killed,” Kelly said. “He knew what he was getting into by joining that one percent. He knew what the possibilities were, because we were at war.”