Washington, D.C., is to lying what Wisconsin is to cheese.

Miller’s line is a compact political jab built on a familiar American analogy: Wisconsin is stereotypically synonymous with cheese, so by parallel Washington, D.C., is cast as synonymous with lying. The humor comes from treating dishonesty as a kind of regional “industry” or signature product—something produced in abundance and expected as part of the place’s identity. As with much of Miller’s stand-up and monologue style, the joke relies on cultural shorthand and exaggeration rather than a specific allegation; it expresses broad cynicism about politics, spin, and the perceived gap between public rhetoric and private motives in the nation’s capital.