The 2016 Contenders: Marco Rubio

Presidential candidates are a breed apart, often propelled by traits that have shaped their careers and have deep roots in personal histories.

Often their greatest strength can turn at supernova speed into their greatest weakness. The exact qualities that set them apart from the field trip them up eventually over the long haul of a presidential campaign.

Florida Sen. Marco Rubio is a man in a hurry, whose dizzying political ascent-he has never lost a race-is a testament to his quickness t...