When someone has a different opinion, it doesn’t mean they are lying. Please stop this thinking.
Also would make sense to read carefully. AfD has more votes in the polls than CDU (not the union CDU/CSU! - which are essentially two parties).
For this kind of comparison you have to treat CDU/CSU as a single party. They're always counted as one in national polls. It is very confusing and misleading to treat them separately in this kind of national comparison.
