Meaning

3 senses
  1. (US)A group of states known for consistently voting Democratic in presidential elections from 1992 through 2012.

  2. A group of states known for consistently voting Democratic in presidential elections from 1992 through 2012.

    (US)The three battleground states that were dislodged from the 1992-2012 group in 2016: Pennsylvania, Michigan, Wisconsin.

  3. (UK)A group of Conservative-leaning parliamentary constituencies that are seen as shifting away from the party.

Origin

From blue (“the representative color of the political party, and the solidity of support f

From blue (“the representative color of the political party, and the solidity of support for that party in that region”) + wall.

Wiktionary, CC BY-SA 4.0 · source

See also

neighbours in the dictionary
blue wall — meaning, examples, forms, synonyms | Krumeto