As Hitler is not available for psychiatric examination, I don't see how that kind of claim could ever be proved. In any case, insanity is impossible to define, and the kind of definitive proof implied in the question is almost unknown.
Hitler may have had some personality disorder, but it is equally possible that he was plain evil.
Yes, Adolf Hitler was a mad and racist fanatic who tricked and killed millions of people. Adolf Hitler will go down in history as one of the most evil humans to ever live. ++ He was not "mad", if you mean in a mentally-ill way. He was cold and calculating as a ruler, and intensely prejudiced, but not insane.
ADOLF HITLER
Adolf hitler
No
Adolf Hitler.
Yes he did
Adolf Hitler
No, Hitler's father died when he was still young.
killed jews
Yes.
Hitler was one of the biggest racists ever.
Of course not.