Bending the arc

JB Pritzker, governor of Illinois, a few minutes ago, responding to Donald Trump’s apparent plan to deploy National Guard forces in Chicago:

“Mr. President, do not come to Chicago. You are neither wanted here nor needed here.”

And:

“As Dr. King once said, the arc of the moral universe is long, but it bends toward justice. Humbly I would add: it doesn’t bend on its own. History tells us we often have to apply the force needed to make sure that the arc gets to where it needs to go. This is one of those times.”

[Source for King’s words here.]