The Russia investigation may be undercutting Attorney General Jeff Sessions’ credibility, but it has not undermined his efforts to take the U.S. Justice Department back in time.

The time Sessions wants to go back to features an unforgiving system of mass incarceration that disproportionately targets people of color in a legal structure too often stacked against them.

To do this, the attorney general has issued a slew of policy rollbacks — unfortunate for a Justice Department that was only incrementally making progress toward equal justice under President Barack Obama and Attorney General Eric Holder.

In this sense, Sessions’ Justice Department might be the most effective unit of the Trump administration. If Trumpism’s goal is, at least in, part to destroy the progress achieved under the Obama administration, Sessions’ scorecard so far outstrips his GOP colleagues in the Cabinet and former colleagues in the Senate.

In March, for example, the nation’s top law enforcement officer visited St. Louis, next-door to Ferguson, ground zero for the Black Lives Matter movement. Sessions was in St. Louis talking about crime initiatives but also seeming to criticize one of the most useful tools for documenting police brutality: civilian cell phone videos. The choice of venue could not have been a coincidence. By focusing on “targeted police killings,” he deflected attention from the challenges now confronting law enforcement.

In fact, Sessions has had little to say on how the Justice Department might address matters of police brutality, much less on the matter of Black Lives Mattering. Instead, he has mostly showcased President Donald Trump’s belief that strong policing and incarceration are key to maintaining law and civil order.