KEYSTONE KOPPERS: The skinny on the fake plot to whack Sheriff Joe Arpaio.
The MCSO’s Wells Fargo building brain trust, getting the tip-off on yet another Arpaio assassination “plot.” Somewhere Max Sennett’s skeleton’s rolling over in its dirt crib. His Keystone Kops — Fatty Arbuckle and all — couldn’t hold a taper to the laugh riot induced by reading the nearly 200-page MCSO…