He's played a big role in many important decisions that led to the Gateway Sports Complex, the coming Medical Mart and Convention Center, the passage of needed Health and Human Service levies, and the implementation of a life-saving countywide 9-1-1 system.
But he leaves as part of the last ever trio of Cuyahoga County Commissioners. Their jobs are coming to an end to make way for the new Executive/Council form of government.
And even though he is untainted by the scandal, he knows that many will only remember the last page of his career.
He tried but failed to move on to higher offices, including Congress, Cleveland Mayor and Governor.
He was an unapologetic liberal Democrat. His life has been public service.
What's next for Hagan as he leaves the political stage?
Tom Beres and Mark Naymik talk with Hagan about his career, accomplishments and disappointments on this edition of Between the Lines.