I considered him woefully inept as President, moderately useful immediately afterwards with his "Habitat for Humanity" work, but in recent years came to regard him as an angry, meddlesome, embittered old man with a nasty streak of anti-semitism, who can't stand to be out of the limelight.
Now I have to agree - his sanity is in doubt.
(Seriously, blaming bad Republicans for a big Republican victory? No recognition that people were flushing bad Democrats? Did he manage to say that with a straight face, or was he just trying to be a troll to get another 15 seconds' of fame?)