When did Evan Bayh Piss in Ezra Klein's Cheerios?

I'm not sure when Ezra Klein decided that Evan Bayh done him wrong, but his latest in the Washington Post, titled, "The sad, hypocritical retirement of Evan Bayh, which details the former Senator going deep into the K-Street lobbying scene:

………

But Bayh did not return to Indiana to teach. He did not, as he said he was thinking of doing, join a foundation. Rather, he went to the massive law firm McGuire Woods. And who does McGuire Woods work for? “Principal clients served from our Washington office include national energy companies, foreign countries, international manufacturing companies, trade associations and local and national businesses,” reads the company’s Web site. He followed that up by signing on as a senior adviser to Apollo Management Group, a giant public-equity firm. And, finally, this week, he joined Fox News as a contributor. It’s as if he’s systematically ticking off every poison he identified in the body politic and rushing to dump more of it into the water supply.

………

In our last interview, Bayh complained of the poor opinion the public had of him and his colleagues. “They look at us like we’re worse than used-car salesmen.” Yes. They do. And this is why.

It's taken Mr. Klein at least 4 years to recognize Bayh as a self absorbed snake oil salesman peddling himself.

I had this figured out well before his abortive 2008 Presidential run.

Still, I wonder why Klein finally notices.