How Obama boosted Harris and continues to shape the Democratic Party ReutersBehind the Obama-Harris Friendship: A Key Endorsement and a Kindred Spirit The New York TimesThe Obama-Kamala Merger New York MagazinePop stars, massive crowds and history: How the Obama and Harris campaigns compare USA TODAYObama And Kamala Harris’ Decades-Long Alliance, Explained—Ahead Of Major DNC Speech Forbes