His hard-fought reelection campaign behind him, President Barack Obama is undoubtedly taking stock of the opportunities and challenges that await him in his second term.

To help us understand those key issues, we turn to two people with broad experience in state and national politics, and the challenges of being an elected chief executive. One is a close, personal friend of the president – the other was the Democratic nominee for president himself. Both have the distinction of having served as governor of the Commonwealth.

In the final installment of our series, Deval Patrick and Michael Dukakis offer their thoughts on how best to leverage the power of the presidency.