It's a pretty blatant piece of plagiarism.
It really shouldn't matter what the potential First Bimbo says, but it is funny and/or distturbing for a variety of reasons. One you have a message about working hard to succeed, like marrying an old billionaire. Two, we have the insistence that she wrote the speech which is complete nonsense. Then we have the fact that Trump is running for the office of US President and his wife is giving the key-note address and is handed a plagiarised speech. It shows a complete lack of professionalism.
For those interested in plagiarism on a grand scale, look up Biden and Kinnock. The current VP ripped off Kinnock's speech about his roots in working class Wales, about ancestors who were coal-miners, etc. Biden even coopted Kinnock's life story, included the coal mining ancestors when there were none. This was from a candidate for US President, not a former glamour model.