Appearing on MSNBC Monday afternoon, the former editor-in-chief of Jared Kushner's New York Observer called out the president's son-in-law excuses over a meeting with Russians linked to the Kremlin, saying the man she worked for never attend a meeting without knowing every detail that would be discussed.

Speaking with host Ari Melber, Elizabeth Spiers said she found Kushner's written statement and brief comments to the press "implausible."

"Elizabeth, he [Kushner] casts himself as overworked, and not necessarily detail oriented," Melber asked. "Does that match with the person you worked for, the one you knew?"

"No," she bluntly replied. "He has a -- you know, he has a good work ethic. It's possible he was working harder than he's accustomed to. However, in terms of the detail orientation, I find it implausible he would show up to a meeting without knowing what it was about."

"He's a busy guy," she continued. "In my experience, every meeting we had was planned and scheduled, and he always had an agenda for it."

"When he showed up at a meeting with you, he knew what they were about?" Melber pressed.

"Yeah," Spiers stated. "I don't find it credible that he had no idea these meetings were about."

Later in the interview, Spiers offered, "At the very least you have to consider that his best defense is that I was completely ignorant on process and that I am incompetent."

Watch the video below via MSNBC: