Germany's snap elections: CDU leads, far-right AfD set for record gains

Millions of Germans have been voting in the snap elections called after the previous left-wing coalition collapsed amid in-fighting. The conservative CDU are strong favourites. But the election could bring record results for the far right AfD, which is projected to double its vote. In an attempt to poach some of that support, the CDU has promised a rightward shift. Silke Siobhan tells us more.