Take a moment to marvel at Bill Clinton's appearance on Jimmy Kimmel Live yesterday (part 1 of 6 above; the rest here). He's in complete command here, seamlessly combining the showmanship and humour that are the staple of such chat shows with command of policy, politics, constitutional law and even science. I can't think of another politician who can touch him, whether its in settings like this or in set-piece speeches like the one that brought the house down at the Democratic National Convention in 2012.

A deeply flawed character, no doubt. But what a talent.