WATCH: Fmr Obama-era Defense Secretary says watching the Afghanistan withdrawal sickened him

Appearing on 60 minutes, former GW Bush and Obama Defense Secretary Robert Gates said watching the Afghanistan withdrawal sickened him.

“It was really tough… I actually wasn’t feeling very well… And I was just so low about the way it had ended,” Gates says. “The other feeling that I had was that it probably did not need to have turned out that way.”

“If you start with the notion that we’re pulling out entirely, I think you’d have to be pretty naïve not to assume things were going to go downhill once that withdrawal was complete,” he later added.

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