Who said "If you tell a lie big enough and keep repeating it

Who said “If you tell a lie big enough and keep repeating it, people will eventually come to believe it”?

Answer:

This quote is attributed to Joseph Goebbels, a high ranking official of the German Nazi Party during World War Two, although there is no factual evidence that he ever said these words. It is likely that the words were attributed to him later in life due to his central role in the German propaganda machine of WWII.