Of course, being the Washington Post, its anyones guess where they came up with that.
If you look at the NYT article the first thing you see is a photo of Nader with Trump. Then the rest of the article talks about donations to the Dems. It says that the indictment did not mention Clinton directly, referring only to a female candidate. So I guess the prosecutors felt that the donations were to she who must not be named. The article also mentions that he had his photo taken with Trump. Gotta play that for all its worth you know.