Addressing the threat of the Islamic State, Joe Biden inadvertently satirized himself at the New Hampshire Democratic presidential debate on Friday.

Biden did so by suggesting that he alone has the credibility to lead a global coalition to confront terrorist groups such as ISIS. Biden is right that cooperation is the best way of effecting positive counterterrorism results. Unfortunately, Biden used one of his greatest failings to make the case that he should be entrusted to lead this effort.