Barr’s promise touches on the holy grail for those of us who believe there was an outrageous abuse of government power to try to tip the election to Hillary Clinton and then to topple Trump.

If Barr keeps his word, the sunlight of transparency soon will shine on the rancid corruption of the Justice Department, the FBI and the intelligence agencies under Barack Obama.

Turning the tables on the conspirators is absolutely necessary to hold accountable those who tried to rig the election. That accountability, if it is seen as honest and evenhanded, will prevent a repeat and begin to restore public trust.

Among the obvious questions that must be addressed are these: How did the unprecedented FBI probe of a presidential candidate get started if the allegations were instigated and paid for by the opposition? Who leaked scores of misleading investigative tidbits to the media in ways that suggested Trump’s guilt was all but certain?