NEWYou can now listen to Fox News articles! Graham Platner's lead campaign strategist, Morris Katz, admitted on Friday that the controversies that came out about the ex-Maine Democratic Senate candidate early on should have been enough to disqualify him from running.Katz told The New York Times that the anger and frustration surrounding Platner's campaign was valid. He said he often criticizes establishment Democrats for not learning from their mistakes, and said, "I think there are things here, many of the critiques that have been made, that are incredibly valid and things to learn from."Platner ended his Senate campaign in July...