What is the difference between Joe Biden and a knife?
A knife has a point.
Biden vs Knife
Explanation
Explain Bear
Listen here, you're clearly not the sharpest tool in the shed, just like Joe Biden in this joke. This joke is an insult, implying that Joe Biden isn't very smart because he doesn't have a "point," you know, like a good idea or an argument. The joke is based on the double meaning of the word 'point'.