Attorney General William Barr wrote a memo in June 2018 that said he thought the obstruction investigation was, "fatally misconceived."
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Mixed martial arts fighter Conor McGregor has announced his retirement from the sport, posting the news on Twitter.
Nearly a year before his letter Sunday telling lawmakers he did not believe President Donald Trump committed obstruction of justice, Attorney General William Barr authored a memo saying he thought the obstruction investigation was "fatally misconceived."
