This left an opening for a dark horse candidate to emerge.

Dark horse candidates with little money could make an impact through one town hall meeting after another.

Despite this support, at the state convention he was a dark horse candidate.

Bryan had been a dark horse candidate with little support in the convention.

Now they're talking about him as a dark horse candidate for president.

Suggestions for introducing a "dark horse" candidate began to take place.

So is the Democratic stable too full for a dark horse presidential candidate to emerge?

Henry was considered a dark horse candidate, although likely to challenge Burger for the presidency.

He caught the attention of party leaders in 1958, and was asked to run for governor as a dark horse candidate.

Dark horse candidates were people who never imagined they would run for President until the last moments of the convention.