Biden's long, extreme history of plagiarism; forced his withdrawal from 1988 race; He "never really stopped".
Biden may be the most unfit major party presidential candidate in at least modern history. The 1988 campaign ended in scandal for him, mostly over the insane level of serial plagiarizing he was caught doing.
This article is a must read.
https://www.msn.com/en-us/news/politics/joe-bidens-plagiarism-problem/ar-BB176DBc