James Comey is about to be ubiquitous. His book will be published next week, and parts may leak this week. Starting Sunday, he will begin an epic publicity tour, including interviews with Stephen Colbert, David Remnick, Rachel Maddow, Mike Allen, George Stephanopoulos and “The View.”

All of which will raise the question: What, ultimately, are we supposed to make of Comey?

He may be the most significant supporting player of the Trump era, and his reputation has whipsawed over the last two years. He’s spent time as a villain, a savior and some bizarre combination of the two, depending on your political views.

I think that the harshest criticisms of Comey have been unfair all along. He has never been a partisan, for either side. Over a long career at the Justice Department, he was driven by its best ideals: upholding the rule of law without fear or favor. His strengths allowed him to resist political pressure from more than one president of the United States.

Yet anybody who’s read Greek tragedy knows that strengths can turn into weaknesses when a person becomes too confident in those strengths. And that’s the key to understanding the very complex story of James Comey.