Three Candidates, Three Personality Types Applying the Myers-Briggs Type Indicator personality test to three White House hopefuls yields these results: Sen. Hillary Clinton is a "supervisor," Sen. Barack Obama is a "champion" and Sen. John McCain is a "promoter."

Three Candidates, Three Personality Types

Three Candidates, Three Personality Types

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Read Yoffe's Analysis

Emily Yoffe expands on her findings in her column.

Applying the Myers-Briggs Type Indicator personality test to three White House hopefuls yields these results: Hillary Clinton is a "supervisor," Barack Obama is a "champion" and John McCain is a "promoter."

Columnist Emily Yoffe of Slate talks with Alex Chadwick about what she feels her mini-experiment revealed.