The Justice Department’s inspector general is looking into James Comey’s disclosures of the Clinton email investigation. But I’m not confident that he’ll reach the most important issue in that debacle: the underlying leaks that probably contributed to Comey’s actions. That will require Jeff Sessions to pick up the baton.

During Sessions’ Senate confirmation hearings, the Alabama Republican assured colleagues that he’s not Donald Trump’s lackey. Here’s his first test: Find out who at the FBI leaked information to Rudy Giuliani during the final weeks of the campaign.