SCOTUS: Trump vs Cook and "INM" meaning

I listened to the oral argument in "Trump v Cook", the attempted firing of a member of the governing council of the US Federal Reserve Board.  I kept hearing a reference to the initials "IMN".  One of the frustrating things, but an understandable one, of trying to follow an oral argument: the use of "inside baseball" shorthand often used by the Justices and the lawyers. 

I had to look it up:

In the legal context of the 2026 Supreme Court case Trump v. Cook, the acronym INM refers to the removal standard of Inefficiency, Neglect of duty, or Malfeasance in office. 

This standard is a central point of debate in the case, which centers on President Trump’s attempt to remove Federal Reserve Governor Lisa Cook. 

The crux of the case centers on the meaning of two words: "for cause".

Statutory Requirement “for cause”:
The Federal Reserve Act permits removal of a governor only “for cause,” but it does not define what “for cause” means. The parties dispute whether that standard includes things such as inefficiency, neglect of duty, or malfeasance in office, or whether conduct unrelated to official duties can qualify. (source HERE)

Capaciousness: A word I cannot live up to...

Since retiring from teaching, I have become a student of the Supreme Court.  I am receiving a fairly comprehensive education in many respects.

I have to look up the definition of words not generally used in everyday conversations. As such, I have to look up "capacious" every time I hear/read it, which is quite often in the language of the Supreme Court.  

Given one of the general uses of the term, I get the irony of having to look it up every time:

"High Capacity: Emphasizes the ability to contain or retain more than average, rather than just having a large area"