One week ago, 23-year-old Nick Shirley was relatively unknown in the public sphere. But in recent days, he has gained hundreds of thousands of followers and millions of views, amplified by Elon Musk, Vice President JD Vance and FBI Director Kash Patel. The MAGA leaders promoted Shirley’s video of himself and a Minnesota activist investigating federally funded facilities in the state that allegedly posed as daycares without any children present. It’s part of what many on the right say is widespread government assistance fraud perpetuated by the Somali community there. Shirley’s experience could only happen in today’s media and political...