This should be the definitive response to accusations about plagiarism in politics. The link is from 2008 when Obama was accused of stealing Deval Patrick’s speech.
https://www.plagiarismtoday.com/2008/02/20/the-obama-plagiarism-scandal/
Here’s the conclusion from the website:
“This isn’t to say that Obama is excused for his actions, just that there are clearly bigger fish to fry. The exposure by the Clinton campaign seems to be motivated solely by politics, as is Obama’s counter-attack and that belittles both the ongoing issues and the nature of plagiarism itself.
Though I am clearly against plagiarism and have no sharp political opinions about Obama or Clinton, I think the nation, and indeed the world, would be better served if the issue were dropped in favor of the topics that matter more in the election.”
It will be forgotten. A few phrases out of an entire speech is not going to matter much with voters.
And public figures are held to a more lenient standard than students, academics and authors.
As long as it isn’t repeated, incidental plagiarism in public life scarcely matters.
There are bigger fish to fry. This controversy will pass.