Wedge Issue Definition

noun

A sharply divisive political issue, especially one that is raised by a candidate or party in hopes of attracting or disaffecting a portion of an opponent's customary supporters.

American Heritage

(politics, social relations) A discussion point or a difference in points of view which is particularly likely to be controversial and a source of discord between discussants or other involved parties; a difference in viewpoints which causes disharmony within a political or social group.

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