Cummings is black, Mandela is black, if he though he could convince the LIV that Mandela wrote the Gettysburg Address, he would have said that.
According to WikipediA Joe Biden was considered second only to, drum roll, Jesse Jackson as the best speaker in the Democratic field of potential Presidential Candidates.
Afraid we're well past that point.
Even that doped-up back-stabbing intern-killing liar Joe Scarborough has told of the day his young son, 8 or 9 years old, came home from school claiming history was his favorite class.
Joe said to him, "History, huh? So tell me who was the first president of the United States?"
"Martin Luther King!" the old chip of the block replied.