The title of Bob Woodward’s new book, Fear, contains a multitude of meanings. For one thing, it describes the attitude of many of President Trump’s own aides toward his judgment.

It’s not just that many sources were willing to tell Woodward damaging stories about Trump: The most stunning examples are those where top aides reportedly thwarted his will. Even more stunning is an anonymous op-ed published in The New York Times Wednesday afternoon written by a purported “senior official in the Trump administration.”

The writer says that senior Trump officials “are working diligently from within to frustrate parts of his agenda and his worst inclinations. I would know. I am one of them.” The official adds: “We believe our first duty is to this country, and the president continues to act in a manner that is detrimental to the health of our republic.”