John Humphrys makes the case for voting No to AV

Is AV too complex? Ask John Humphrys, who unwittingly made the case against switching system today, in conversation with David Cameron on the Today programme. It became clear that Humphrys believed that everyone’s second preference vote would be counted under AV — and Cameron pounced. Here’s the transcript:

DC: If you go to an AV system you start counting some people’s votes more than once. And you end up, in the words of Churchill…
JH: No you don’t. It simply isn’t true that you count votes more than once.
DC: Yes, you count all the votes. You start eliminating candidates, and you count people’s second preferences.
JH: And I have a second preference, as well as you, as well as anyone else. So you don’t count some people’s votes more than others. [laughing gently at absurdity of proposition]
DC: Actually, John, you’re wrong. completely wrong. That is not the way it works.