That mob that split off from the Donald Trump rally of Jan. 6 to invade the Capitol has proven a godsend to the left.
The death of a Capitol cop has enabled the left — which spent the summer after George Floyd’s death trashing “racist cops” and shouting, “Defund the Police!” — to posture as fighting allies of the men in blue.
Liberals who implored us to understand the grievances of the rioters, looters and arsonists last summer have become sudden converts to the church of law…