This all sounds like a formula for success: a brilliant pollster who will steer his candidate to the centre but who will not try to turn an election victory into a White House empire.

• 这一切听起来像是成功的策略：出色的民调专家引导自己助选的总统候选人走向中间路线，但不会试图利用胜选构建白宫帝国。