There has been a sense of deja-vu about politics this week.

If you have switched on the TV or radio, or bought a newspaper, you might well have wondered if you had stepped back in time.

David Cameron has been touring the studios, promoting his memoirs, John Major has been in the Supreme Court, and Tony Blair has made another warning about the loss of the political centre ground.

To a lesser or greater degree, the trio of former Prime Ministers have all had Brexit in their sights.

David Cameron has settled a few scores over colleagues he feels betrayed him over Europe, while John Major has delivered a no-holds-barred rebuke to Boris Johnson about his decision to prorogue parliament.

It is all a reminder - as if we needed it - that Europe remains a serious fault line for the Conservatives: you can’t get much more of a "blue on blue" fight than a former PM taking on the current occupier of Downing Street in the highest court in the land.

Which brings us to Labour’s latest Brexit position, finessed by Jeremy Corbyn who, for some of his critics, has found another way to sit on the fence.

Some have parodied his latest solution as one which would involve him being neutral in a referendum called by his own government.

He has spun it as a solution in which he would as PM, honour what voters called for.

Whether it will pass muster with activists and members at next week’s conference is a different matter.

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