Patrick Spencer: Some advice for the new Conservative leader. Stick to these three ideas to boost productivity.

The new Chancellor should stick to the basics of cutting taxes, spending more on education and rebalancing growth outside of London.

John Jenkins: Too many excuses are made for Iran – especially by the EU. We must get real, stand with America, and take decisive action.

I’m glad to see we’ve now had the guts to stop a tanker we believe is smuggling Iranian oil in defiance of sanctions on Syria.

The farcical horse-trading of the EU’s top job is a stark reminder of why we must leave

Who are you voting for to run the EU Commission? Have you watched the debates and scrutinised their manifestos? Oh, wait.

Conservatism is better than liberalism – and Putin much, much worse than either

What he detests is less liberalism than democracy, and the obstacle it poses to Russian foreign policy objectives.

Andy Street: An industrial strategy in the West Midlands to kickstart an industrial revolution

The march of technology stops for nothing – not even Brexit – and the businesses and regions which embrace it will be the winners of the future.

John Redwood: Why populists reject the establishment – and no longer believe what it tells them

Here in Britain, the two main parties are being punished by voters for tearing up their Brexit commitments.

Neva Sadikoglu-Novaky and Jonathan Werran: Brexit gives the chance to have full fiscal devolution. Let’s take it.

Through tax competition, we could truly have a real Northern Powerhouse and give cities in the north a fairer chance against London and the south east.

Rory Stewart: Of course there’s a climate emergency. Here’s a wide-ranging Conservative programme to tackle it.

Saving our planet will require a very eclectic bunch of policies. The task calls for moral courage and grinding common-sense.

For a really serious British foreign policy failure, look at Chamberlain’s attempt to appease Hitler

Tim Bouverie has written a fascinating account of the slide towards the Second World War.

WATCH: May arrives in Berlin, only to find Merkel missing

Rather than the traditional red carpet welcome, the Prime Minister had to re-emerge with the Chancellor shortly afterwards to pose for the cameras.

Henry Newman: What will the EU do now? Force No Deal? Offer a long extension? Or even a short one?

Now more than ever, it’s Brussels and not the Government which is in the driving seat – and we don’t know which way it will turn.

Ashley Fox: May’s deal. We will be dragged into the disaster of European Parliamentary elections if it doesn’t pass.

We be explaining on the doorsteps why voters should send representatives to an institution we pledged to have left two months previously.

Damian Hinds: Raise the quality of technical education, and parity of esteem will naturally follow

It is utterly confusing to provide 12,000 course options at Level 3 or below. The system must be reformed.

Anna Nadibaidze: Where do the other members of the EU stand on the question of an Article 50 delay?

It would need unanimous agreement. Looking at each of the 27’s varying comments, there are six distinct camps of opinion.

Stephen Booth: Brexit and the economy. There are ups, there are downs. But whatever happens, our fundamentals remain strong.

A flexible labour market, a well-regarded legal system, and comparatively favourable demographics relative to the major European economies are all valuable assets.