Trump then ran through a series of talking points about all the ways he saw the administration as succeeding, before turning back to the jaw-dropping op-ed, which accused him of being "amoral" and warned that the author and other Trump administration colleagues would continue to try to constrain Trump as he "continues to act in a manner that is detrimental to the health of our republic".
It was not immediately clear what, if any, steps were being taken by the White House to attempt to unmask the writer.
Here's what you need to know about the 25th Amendment, and what it means for Trump's presidency.
The column was released a day after the release of details from an explosive new book by longtime journalist Bob Woodward that raises concerns among the highest echelon of Trump aides about the president's judgment.
The Massachusetts Democrat and progressive hero, often touted as a 2020 presidential hopeful, said Wednesday's op-ed in the New York Times by an anonymous White House official justifies forcing out Mr. Trump under the constitutional provisions for an incapacitated president.More news: Senior Trump official describes resistance inside administration: NY Times
The writer also alleged "there were early whispers within the cabinet of invoking the 25th Amendment" because of the "instability" witnessed in the president.
"This isn't the work of the so-called deep state", the official writes. Today they covered Trump's awful, horrible, no good, very bad day yesterday, and co-host Brian Kilmeade offered an interesting solution to President Trump to deal with his staffer's insolence admitted in the op-ed column. The president has since attacked the "Failing New York Times" on his Twitter account.
"We are disappointed, but not surprised, that the paper chose to publish this pathetic, reckless, and selfish op-ed", Sanders said. "I can just tell you that when I was deputy chief of staff, Rahm Emanuel would have walked into my office with a bat, and either he would have walked out, or I would have walked out, but I would have figured out what to do about this, I promise you". "We've done more than anybody ever thought possible, in it's not even two years", he concluded. He is not putting country first, but putting himself and his ego ahead of the will of the American people.
But if it were to happen, this is what would occur: a significant amount of senior officials would have to submit a written declaration that the president (in this case, Trump) was no longer able to "discharge the powers and duties of his office".