Last year was the first time voters were able to have a say on who should run the Commission as the main European parties put forward candidates who became known by the German term spitzenkandidaten.

But how did this historic change come about? What obstacles had to be overcome? How will this influence EU politics in the long run?

These are some of the questions the candidates of the major European political families - Jean-Claude Juncker, Martin Schulz, Alexis Tsipras and Ska Keller - together with other key players, observers and commentators answer in our video.