When Bush left office, over three hundred Americans had returned from Iraq in body bags in the last year alone, and the nation was bleeding out tax dollars there at a rate of many tens of billions of dollars per year, on its way to what's been estimated to be a $3 trillion mistake. By comparison, so far in 2016 only seven Americans have died in Iraq, and operations there are order of magnitude less of a drain on the taxpayer than they were. Our military readiness is no longer being constantly ground down to a nub by endless large-scale losses there, and our international prestige has partly recovered from the low points Bush bequeathed. Yes, I'd call those things an improvement.