James Comey’s firing threatens more than just the rule-of-law norm against self-investigation. It also threatens the rule-of-law norm against politically motivated policing and prosecutions.
The Trump administration has repeatedly (and incorrectly) argued that a policy does not constitute discrimination unless the policy discriminates against all members of a particular group.
The Trump administration’s efforts to disguise the facts by not deigning to look for them—and discouraging others from doing so—resemble the United States’ policy on research related to gun violence and gun possession.