Those programs are pretty good that identify writing styles. This op-ed is classic nevertrump. I’ve read it a dozen times minimum.
The op-ed seems too short to be able to do an accurate analysis.
Plus a lack of factual details limits identification of the perp (assuming that it is not fake).
Hmmm, is there someone outside of the White House but in the conservative universe who has or can obtain such a program, and has access to the public writings of all the President’s “senior” staff?
Then it should be possible to narrow down the author, likely literally overnight.
One problem though: There is also software to help keep someone anonymous.
More info. here (source is ironic!):