DC Decoder Bill Clinton factor: Can he tip Senate race to topple McConnell? (+video)

Bill Clinton's campaign swing in Kentucky aims to give a boost to Democrat Alison Lundergan Grimes, who is slipping in the polls in a key Senate race.

By , Staff writer

Pablo Alcala/The Herald-Leader/AP

In the most closely watched Senate race in the country, Bill Clinton is campaigning for Democrat Alison Lundergan Grimes in Kentucky on Wednesday.