COVID-19 Response Coordinator Jeff Zients told reporters in the White House briefing room that the “pause” would not have a significant effect on the national vaccination effort, because Johnson & Johnson provides a small percentage of vaccines. That overlooks the likely impact of the FDA’s announcement on the public’s willingness to risk the shot. It also ignores the fact that 15 million Johnson & Johnson doses were ruined by a production error — on the administration’s watch. Biden has claimed, falsely, that he “turned around a slow-moving vaccination program” he inherited from President Donald Trump. That was always a lie:...