Will Ferrell just premiered The Campaign’s official trailer on Jimmy Fallon, and while it’s mostly alternate versions of footage recently spied in The Campaign’s fake campaign ads, it’s certainly confirmation that a) Ferrell is doing a slightly modified take on his storied George W. Bush impression, b) Zach Galifianakis is giving us a much-needed deeper glimpse into his Seth Galifianakis character (or at least a version of him), and c) this will be a funny, funny movie featuring a crossbow to the thigh, a slo-mo baby-punch, and the political dream phrase “I refuse to lose and I will win.â€