His must-read post can be found here. From the conclusion:
Perhaps this same deep American refusal to accept losing gracefully will also check the foreign policy establishment's rush to embrace American decline. The Obama administration's ranks are filled with people, fresh from the academy and the think tanks, who talk about the need to manage American decline, and even boast about how much more sophisticated they are than the Bush people on this score. They do say all this off the record, however. Perhaps they know that many Americans would not applaud them for their sophistication. Let's hope the man in the Oval Office knows it, too.
The whole thing is worth reading for the critique of Biden alone.