If Merkel has discovered Europe in a beer tent, I can only say: better late than never. Otherwise, it was the height of hypocrisy: The chancellor sat down for a beer with CSU Chairman Horst Seehofer, the man who after the election praised Donald Trump as a very resolute man.

We are in the middle of a tough, ideological conflict that is being waged across the entire continent. On the one side are those who say that global challenges like migration and terror cannot be met with national parochialism. On the other side are those who would like to see a renaissance of the nation-state.

Just come to Brussels after a Council meeting. Do you know what happens? Every head of government holds his or her own press conference. They all say the same thing, in 24 languages: I was able to push through my agenda. And if the result is anything other than what they desired, the message is: Brussels is to blame. It has been this way for over 20 years. These messages stick with people, and that's deadly for Europe.

I believe it is wrong to give Moscow a rebate on Ukraine sanctions because of Syria.

France is ready for a European revolution and it is Germany that is pulling the brakes. For a long time, it was the other way around. You don't have to agree with the details of every single one of Emmanuel Macron's suggestions, but he's right about the idea of a new foundation of Europe. Europe's Social Democrats have long demanded this. If we really want to, we can create a different, better Europe in the coming years.

Referendums are a democratic instrument, but so are decisions reached in a parliamentary democracy. I advise extreme caution when it comes to referendums. In Germany too.

It's not attractive at the moment to vouch for the European idea. I still do it, because I believe nothing would be better for our continent.