Club for Growth spends more, sees bigger successes

The conservative Club for Growth and its various entities injected more than $55 million into the past four election cycles on behalf of candidates it endorsed, spending more money each year with a varied, but improving, success rate. Since 2006, the Club for Growth has helped nearly 50 endorsed candidates get elected to Congress, driving Republicans in the House — and increasingly in the Senate — further to the right. The group rarely follows through on threats to challenge incumbent Republicans, but when it does, it has been throwing increasingly larger sums of cash at its targets.

Went up against a Republican incumbent

Won general election

Won primary, lost general

Lost primary election

By result

By year

SOURCE: Club for Growth.