Antifa is sometimes used as a synonym for black bloc anarchists—the scruffy kids in black bandanas or balaclavas known for smashing Starbucks windows—but while the movements overlap, they’re not identical. Jenkins doesn’t wear a mask, and Laura is an upper-middle-class suburban woman with grown children. The movement appears to be growing rapidly under Trump, though it’s impossible to put hard numbers to it; there are no membership rolls.