The editorial board had written an unpublished endorsement for Harris, and they have been publicly endorsing presidents for the past ~50 years. This year they did not, and recently it was made public why: the billionaire owner, Jeff bezos, ordered them not to.
It is more about there being proof that the owner is having editorial control of the paper, than about any endorsement.
The owner controlling editorial decisions is to many, myself included who also cancelled my subscription, a violation of journalistic principles and not the product we are paying for.
I want to read a publication where skilled journalists can speak their mind, and that is no longer certain at the Washington Post, instead I must interpret their opinions as filtered through a billionaire's goals and opinions. I do not want to pay for that.
https://www.economistgroup.com/esg/board
Chaired by a Baron, the Lord Paul Deighton, who also chairs the Heathrow airport and was involved in banking and the conservative governments of UK, handling part of the covid crisis for Boris, and being involved with the Pandora papers scandal.
The rest of the board has their own stories.
https://en.m.wikipedia.org/wiki/Paul_Deighton,_Baron_Deighton