>>No need for further FBI investigation since they already did so in July and dismissed this.<<
I haven’t read of this before. Do you have a source?
It was initially reported that Senator Feinstein turned the letter over to the FBI in July. They dismissed it. That is part of why it was so objectionable that she brought it up at 11th hour as it had already been reviewed and dismissed. Look at the FR threads from last week. Sorry, I don’t have links immediately at hand.