Benjamin Franklin (1706-1790) was a founding father, but he never became president. A riddle was posted on Reddit—Jokes on July 6, 2017:
   
Q: How do you begin a politically incorrect joke?
A: President Ben Franklin walks into a bar…
   
The joke takes “political correctness” literally.
 
 
Wikipedia: Political correctness
The term political correctness (adjectivally: politically correct; commonly abbreviated to PC or P.C.) is used to describe the avoidance of language or actions that are seen as excluding, marginalizing, or insulting groups of people who are seen as disadvantaged or discriminated against, especially groups defined by sex or race. In mainstream political discourse and media, the term is generally used as a pejorative, implying that these policies are excessive.
     
Wikipedia: Benjamin Franklin
Benjamin Franklin FRS, FRSE (January 17, 1706 [O.S. January 6, 1705] – April 17, 1790) was one of the Founding Fathers of the United States. Franklin was a renowned polymath and a leading author, printer, political theorist, politician, freemason, postmaster, scientist, inventor, civic activist, statesman, and diplomat. As a scientist, he was a major figure in the American Enlightenment and the history of physics for his discoveries and theories regarding electricity. As an inventor, he is known for the lightning rod, bifocals, and the Franklin stove, among other inventions. He facilitated many civic organizations, including Philadelphia’s fire department and the University of Pennsylvania, an Ivy League institution.
 
Reddit—Jokes
How do you begin a politically incorrect joke?
submitted July 6, 2017 by Funandgeeky
President Ben Franklin walks into a bar…
 
Twitter
Jesse Harmon‏
@TheJesseHarmon
How do you start a #PoliticallyIncorrect joke?
President Ben Franklin walks into a bar…
10:39 PM - 5 Jul 2017 (This is actually timed after the below.—ed.)
 
Haha.Cafe
How do you begin a politically incorrect joke?
July 5, 2017 Editor’s Pick
President Ben Franklin walks into a bar…
 
Twitter
Best of Reddit‏
@BestoReddit
How do you begin a politically incorrect joke? : President Ben Franklin walks into a bar…
2:01 AM - 6 Jul 2017
 
Reddit—Jokes
How do you begin a politically incorrect joke?
submitted July 6, 2018 by drollia
President Ben Franklin walks into a bar…