As someone who works with the public daily, I take away a more hopeful view of Biden being book-ended by those two. As a teacher, I get students who are all over the academic map. Some start 2nd grade reading Harry Potter while others find Clifford the Big Red Dog to be challenging. They have different temperaments and learning styles. Beyond that, each of their parents has different ideas about academic priorities and engagement.
I know Biden cannot completely satisfy Bernie or Kasich. However, he is showing that he will hear them, that he will work with them to meet the needs of Americans.
That is a 180-degree different message than the Trump team is putting out there. Looking at their convention's developing speaker list, it is clear they do not want all Americans with them. They have their narrow following and they are set with that. Their goal is to accentuate the gap between their base and the rest of America.
For me, this is an easy choice.