NASCAR power rankings: Jimmie Johnson seizes No. 1

With consecutive wins, Jimmie Johnson emphatically stakes his claim to the No. 1 position in this week's NASCAR power rankings. No debate. No deliberation. No careful examination of the numbers. Any question of who is ranked No. 1 was settled the moment Jimmie Johnson crossed the start/finish in the FedEx 400. Not only was it the defending champ's second victory in as many weeks, but he again led the most laps. 1. Jimmie Johnson (Last week: 3) From questions about if he will ever win to question...