Definition
An unlikely or previously unknown candidate who unexpectedly gains traction in an election, emerging from obscurity like a mystery horse at the race track. The political version of a plot twist everyone should have seen coming but didn't.
Example Usage
The mayor was considered a dark horse candidate when he entered the gubernatorial race, but his grassroots campaign caught fire in the final months.
Origin
From 19th-century horse racing terminology for an unknown horse that wins unexpectedly. First political use described James K. Polk's 1844 nomination.
Fun Fact
James K. Polk was such a dark horse that when news of his nomination reached Washington, Whig politicians allegedly responded, 'Who is James K. Polk?'
Related Terms
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See “dark horse candidate” in Corporate Speak, Gen-Z Slang, Pirate Speak, and more.
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