Obama is on the list, but IPBiz selects Joe Biden head over heels before Obama. Biden's "speech" plagiarism of Neil Kinnock was far worse than Obama's, and it was not even accurate as to Biden. At least, if you plagiarize, steal something that's true. Further, Biden's law school plagiarism at Syracuse tops anything on Johnson's list, five pages from a law review.
In passing, from a fortune cookie on 21 October:
"A good memory is fine but the ability to forget is the one true test of greatness."
**As to Biden, from a book review of work by Kathleen Rooney:
"Give me your tense shifts, your misspellings, and your passive verbs," she writes in "I Will Catch You," a biting condemnation of plagiarism from a professor who prefers flawed original prose to stolen work; this piece should be required reading for any new college student -- and Joe Biden.