She’s keeping to the classic propagandist Goebbel’s teaching of repeat, repeat, repeat the lie - and it will eventually become the truth in the mind of the uneducated.
The human mind is a frightening thing. She knows if she repeats it enough, the press will pick it up, and soon kids that were never aware will be astounded and never believe the truth, just like little Muslims don’t believe in the Holocaust.
There are huge numbers who believe Abraham Lincoln was a democrat and George Wallace was a republican.