Yeah, to "pass the torch."

To Kamela Harris who may become the next President of our United States.
Must terrify Trump who desperately wants to win so he can over rule all cases against him .

But did Biden ever explain WHY he must pass the torch now?

Was obvious that he didn’t have the support and poles showed him slipping behind.
So Joe Biden did the right thing and bowed out, even though he didn’t want to quit.
And he did so without whining about it or blaming as Trump so often does.
President Biden gave a proper speech and that’s it .
Solid as appropriate for an American President in that position.