Facebook has removed campaign ads by President Donald Trump and Vice President Mike Pence that featured an upside-down red triangle, a symbol once used by Nazis to designate political prisoners, communists and others in concentration camps.The company said in a statement on June 18 that the ads violated "our policy against organized hate." A Facebook executive who testified at a House Intelligence Committee hearing on June 18 said the company does not permit symbols of hateful ideology "unless.