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Kamala Harris is known to love Venn diagrams and would be cringing hard at this.
For reference, circles in Venn (Euler) diagrams are sets of objects with a certain property. Select objects are shown inside or outside of each circle depending on whether they belong to the set.
A good example is xkcd 2962:
Maybe I should ask OP who it is they’re saying is confidently incorrect? I originally thought that they were saying Oliver was incorrect, but your response makes me wonder if they meant the Trump campaign response was incorrect.
Basically, I just want clarification.