In September 1935, on the occasion of the passing of the first of the Nuremberg laws, Hitler gave a speech.
In the speech he said that if Germany's "Jewish problem" could not be solved by these new laws, then the matter needed to be delegated to the Nazi Party itself so that the Party could engineer an "Endloesung" - a final solution.
The Final Solution was thus publicly on the table almost seven years before the Wannsee Conference.
One of the best political cartoons I’ve ever seen was in 1992 when Pat was running for President. It depicted him giving a speech with the caption ‘Mein Kampaign’.