When career law enforcement officials face punishment for lawful work, investigative quality across all future administrations degrades. Prosecutors self-censor to avoid becoming targets, institutional knowledge leaves, and the cases that get opened are the ones politically safe to pursue rather than the ones most important to national security or public integrity. Read the Brennan Center's research on executive power and prosecutorial independence at brennancenter.org to understand the historical record on what happens when administrations use the DOJ as a political tool — the evidence spans multiple administrations and parties.