It's absolutely true that people who believed Hillary Clinton would be a decent or even strong nominee need to think why that got that wrong. Laying the entire blame at the feet of Russia and the FBI is not sufficient. The biggest reason things went wrong were her own choices and her own weaknesses.

Because many people remembered a time when the Republican Party was not so extreme, and hadn't full grasped how much it had changed, people blamed Obama for his failure to get Republicans to agree with him. That blame coloured so much of how the public saw Obama during his presidency. The public thought he was dealing with a brand of Republican leader that just didn't exist any more.

Conservatives are much more comfortable supporting the leader who's in power than liberals.

Liberals tend to romanticize the past, past leaders' failures.

Liberals will only support you after you're gone.

That's an important Obama accomplishment: he raised taxes back to Bill Clinton levels, and made a major dent in inequality doing so. That's certain to be reversed, that's going to disappear. The Republicans are going to slash the rich's taxes.

Barack Obama knows a lot about a lot of things.