Former Prime Minister Paul Keating offered current Prime Minister Kevin Rudd some advice about the then-new opposition leader: He's brilliant, he's fearless... and he's got bad judgment.
(Reported by Peter Hartcher in Saturday's Sydney Morning Herald.)
Keatings words could easily be Turnbull's epitaph. If you're going for the PM's jugular, it pays to have more evidence than a single email - as Turnbull found out, it could be forged.
The fact that Turnbull pushed it so hard - and with such personal arrogance in one or two conversations - is fully reflected in the three opinion polls released today, which show a plummet in support for Turnbull and the Liberals. Of course, he'll survive this... and could well lead the Liberals to defeat at the next election - for precisely the reasons I expected when Turnbull was on his way up.