Who better to help a candidate extract weighty lessons from his personal history, to teach him to tell voters that their own successes depend on his own?
Candidates don't need to learn a lesson, they're fine. 
mnli hypothesis: Candidates don't need to learn a lesson, they're fine.  premise: Who better to help a candidate extract weighty lessons from his personal history, to teach him to tell voters that their own successes depend on his own?