Republican state Sen. Shannon Grove tried out a new hashtag on her Twitter account this week: #SaveOurChildren. It was a phrase she hadn’t used before Tuesday, and just a few weeks ago, it would have seemed harmless enough. But these days on social media, #SaveOurChildren has been almost entirely taken over by a movement connected to the baseless and sprawling conspiracy theory known as QAnon. Conspiracy theorists have latched onto the phrase "Save Our Children" and others like it in recent weeks to promote the belief that a government cabal is protecting Satanist pedophiles hidden among society’s elite, with President...