Nick Bourne, the Conservative leader in the Welsh Assembly is today reported as saying that accepting devolution was a "Clause Four" moment for the party.
He was, of course, making the comparison with Tony Blair’s abolition of the long-standing Clause Four of the Labour Party constitution which had committed his party to nationalisation – a defining moment in the creation of New Labour which saw past dogma rejected in the face of a new political environment.
But aren’t there other candidates for the Tories Clause Four moment?
What about the party’s commitment not to abolish the minimum wage?
Or its acceptance that it would not reintroduce Section 28?
Are any of these genuinely comparable with Labour’s abolition of Clause Four?
Or does the Conservative Party’s historic lack of codified ideology render the comparison tenuous?