How those ivermectin conspiracy theories convinced people to buy horse dewormer

For much of the first year of the coronavirus pandemic, President Donald Trump and his allies pushed an unproven drug, hydroxychloroquine, as a potential wonder drug to defeat the virus. It never panned out.

But many of the same people and organizations were apparently unchastened by that experience. Slowly over the past nine months, they have injected another supposed potential wonder drug into the political bloodstream: ivermectin.