What the image shows
A news/press-style photograph of the National Mall in Washington, D.C. at dusk. A large, dense crowd of people (mostly young adults) fills the foreground in front of the Reflecting Pool, many holding up phones to take photos or video. The Washington Monument obelisk stands in the middle distance, reflected in the pool. The sky is a dramatic orange-pink and purple, with a visible rainbow arcing down on the left side of the frame and a bolt of lightning striking near the tree line to the left of the monument. Trees line both sides of the pool. There is no overlaid text, caption, or graphic on the image itself.
Described automatically. The words above are a machine's reading of the picture, not Trump's.