The share of wealth held by the minority is much greater than the share held by the majority. We have to draw our own conclusions from that and it has to change.

Primary responsibility for Brexit lies with British conservatives, who took an entire continent hostage.

Ms. Merkel is avoiding retirement issues. She simply doesn't want to do anything, although she knows that doing nothing means that real pensions will fall. That is preprogrammed old-age poverty. When it comes to wage fairness: It was Ms. Merkel herself who blocked the establishment of a right to return to a fulltime job after going part time for a period. Yet everyone keeps saying that our platform is identical to that of the conservatives. It's crazy.

A joint European army is a very far-reaching proposal and it would be difficult to implement. Such initiatives are nevertheless needed.

The membership survey was a great moment for inner-party democracy. We can't go back, nor do we want to. Our members are pouring their hearts into this campaign. But people don't join the Social Democrats party just to put up posters. They join because they want to help steer the party.

I'm fully aware that my vision of a European bicameral parliament can't be implemented tomorrow. I'm also not an integration fanatic.

We agree: Brussels can't regulate everything. I'm driven by something else: There are forces in Europe that want to generally give national policy priority over a common European approach. We have to prevent this.