So what happened this weekend? For a full briefing on President Trump’s claim that President Obama ordered a wiretap of Trump Tower during the election—what was alleged, what the president knew when he alleged it, and what to make of the various responses to those allegations—read editor in chief Stephen Hayes’s well-reported rundown. Hayes argues that March 4 may end up being the most consequential day of Trump’s presidency. What those consequences are depends on the truth.