Not edifying, but some publicly-expressed self-awareness at the end ...

US President George W Bush during his final press conference as President of the US:

(Answering a question about mistakes during his presidency) "Gotcha. I have often said that history will look back and determine that which could have been done better, or, you know, mistakes I made. Clearly putting a "Mission Accomplished" on a aircraft carrier was a mistake. It sent the wrong message. We were trying to say something differently, but nevertheless, it conveyed a different message. Obviously, some of my rhetoric has been a mistake. I've thought long and hard about Katrina -- you know, could I have done something differently, like land Air Force One either in New Orleans or Baton Rouge. The problem with that and -- is that law enforcement would have been pulled away from the mission. And then your questions, I suspect, would have been, how could you possibly have flown Air Force One into Baton Rouge, and police officers that were needed to expedite traffic out of New Orleans were taken off the task to look after you? I believe that running the Social Security idea right after the '04 elections was a mistake. I should have argued for immigration reform. And the reason why is, is that -- you know, one of the lessons I learned as governor of Texas, by the way, is legislative branches tend to be risk-adverse. In other words, sometimes legislatures have the tendency to ask, why should I take on a hard task when a crisis is not imminent? And the crisis was not imminent for Social Security as far as many members of Congress was concerned. As an aside, one thing I proved is that you can actually campaign on the issue and get elected. In other words, I don't believe talking about Social Security is the third rail of American politics. I, matter of fact, think that in the future, not talking about how you intend to fix Social Security is going to be the third rail of American politics. One thing about the presidency is that you can make -- only make decisions, you know, on the information at hand. You don't get to have information after you've made the decision. That's not the way it works. And you stand by your decisions, and you do your best to explain why you made the decisions you made. There have been disappointments. Abu Ghraib obviously was a huge disappointment during the presidency. Not having weapons of mass destruction was a significant disappointment. I don't know if you want to call those mistakes or not, but they were -- things didn't go according to plan, let's put it that way. Anyway, I think historians will look back and they'll be able to have a better look at mistakes after some time has passed. Along Jake's question, there is no such thing as short-term history. I don't think you can possibly get the full breadth of an administration until time has passed: Where does a President's -- did a President's decisions have the impact that he thought they would, or he thought they would, over time? Or how did this President compare to future Presidents, given a set of circumstances that may be similar or not similar? I mean, there's -- it's just impossible to do. And I'm comfortable with that. "

The man is clearly not a fool, however much I (and many millions of others, both in the US and elsewhere) came to see him as a deeply-flawed individual whose conduct in office will have [negative] repercussions for many years to come, and the first and penultimate paragraphs above show a startling level of self-awareness, however belated is the public expression of it. Who knows how 'history' will view him eventually, but my assessment right now is that he is the worst US President of my lifetime; for all his flaws Nixon did have real political vision (e.g. relations with China). Let's hope the next US President makes better use of his time in office.