Donald Trump is betraying everything that made America great: tolerance, democratic institutions and respect for the individual. In that sense, Trump is the most un-American U.S. president that the country has had in a long time.

I believe that dignified work is a value in itself.

We need a common European tax policy that closes these tax loopholes. We need a common European social policy that prevents social dumping. We need an effective securing of our external borders and a smart way of fighting terrorism. Acting as a state within a national framework is no longer enough. The German chancellor has completely failed to convey that throughout her years in power. We need a re-start for Europe.

The question of societal fairness is always pertinent.

The principles of the SPD have remained the same for 150 years: democracy, human dignity, justice and inclusion. We will never change those principles.

Donald Trump must be taken seriously. He is fulfilling his dangerous campaign promises.

The vast majority of people support the idea of an enlightened, modern union of countries demonstrating solidarity. Film director Wim Wenders recently summed up the problem to me very well. He said the idea of Europe has become an administration, and now people think that the administration is the idea. But that doesn't mean we should give up on the idea - it means we should change the administration.