Yes, this is for real. Jim Geraghty explains:
Bernie Sanders’ campaign is now selling t-shirts with this design by Shepard Fairey, the guy who made the red-and-light-blue Obama “HOPE” poster: Finally, the Sanders campaign finds that iconic image that screams “national socialism.” I guess tomorrow belongs to them. We live in a world where Republicans get accused of fascism like clockwork, but the socialist Democratic candidate can pledge “a political revolution,” “A future to believe in,” use quasi-art-deco 1930s-style art that features a purifying fire . . . and nobody blinks.