Mitt Romney is determined not to break the first rule of of choosing a Republican vice-presidential candidate – avoid those who might upstage you. While John McCain made this error with Sarah Palin, Romney is known as a data-driven, bottom-line businessman who makes decisions only after weighing all probabilities. His choice for VP will be guided by the same principles. Read the related analysis.
Sleepers and long-shots
New Hampshire Senator Kelly Ayotte, South Carolina Governor Nikki Haley, Congresswoman Cathy McMorris Rodgers, Virginia Governor Bob McDonnell, New Mexico Governor Susana Martinez
Interactive by Stuart A. Thompson
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