Watch: Harris explains in her first interview as Democratic nominee why her positions on key issues have changed

Vice President Kamala Harris on Thursday offered her most expansive explanation to date on why she’s changed some of her positions on fracking and immigration, telling CNN’s Dana Bash her values haven’t shifted but that her time as vice president provided new perspective on some of the country’s most pressing issues. The full interview will at 9 p.m. ET Thursday on CNN’s “The First Interview: Harris & Walz, A CNN Exclusive.”