A meticulously detailed vintage mid-century propaganda poster depicting sarcastic retro futurism in a Fallout setting, yellow blue palette, Donald Trump gives a confident thumbs up while standing front and center, an expressive atomic mushroom cloud billowing in the city background. The scene is framed with bold graphic lines and playful geometric shapes, reminiscent of 1950s advertising posters. Muted teal, orange, pink, and brown hues create a textured, slightly faded color palette, evoking nostalgic charm. The illustration carries subtle grain and a warm sunlight glow, capturing Mary Blair's distinctive style. Elements are arranged with Vault Boy dominating the foreground, the atomic mushroom cloud positioned centrally in the distance. An atmosphere of whimsical foreboding is blended with upbeat optimism. Poster's title: "MAKE WW3 GREAT AGAIN!"