Over the course of 18 months, the intrepid patriots on the House select committee investigating the January 6 insurrection tirelessly researched Donald Trump’s efforts to overturn the results of the 2020 election through fraud, intimidation, harassment and violence. The committee’s public hearings were an exercise in civic education, presenting the nation with a gripping, granular and truthful account of an unhinged president seeking to cling to power at all costs. Now they have gone one crucial step further. They have referred the matter to the justice department, urging that Trump be prosecuted. Let us take stock of this astonishing moment....