Crossword clues for What Dewey did in 1948. 3 letters:RANWhat Dewey did in 1948.UNDERDOGTruman vis-à-vis Dewey, in 1948ALSORANDewey, in 1948.LOSERDewey in 1948TRUMANDewey Defeats ___, infamous Chicago Tribune headline of 1948