I don't see open Nazis having a seat in government in any country where it is legal to advocate Nazi ideologies. On the other hand, Austria and Germany, two countries where that is illegal, have together 5 European MP's from their respective Nazi parties.
...because that's where Nazis "originated" from. Just like the U.S. still has KKK members in various positions of authority, while presumably Germany or Austria have no KKK members.
Well, I guess it depends on your definition of "open". There is such a thing as an "open secret". And I think we all know which side of the fence Trump is on.