The Veep has been announced, page-57

"was "bused" to school on that basis"

Yup,

"“I do not believe you are a racist, and I agree with you when you commit yourself to the importance of finding common ground,” she said. “But it was hurtful to hear you talk the reputations of two United States Senators who built their reputations and career on segregation of race in this country.”
She continued: “And it was not only that, but you also worked with them to oppose busing. And you know, there was a little girl in California who was a part of the second class to integrate her public schools, and she was bused to school every day. And that little girl was me.”"



https://time.com/5616709/joe-biden-busing-democratic-debate/