Factbox: Biden wants a woman to be his running mate. Here are some names under consideration

Biden has vowed to choose a woman as his potential vice president.A number of advisers have pressed Biden's campaign to pick Harris, 55, because the daughter of Jamaican and Indian immigrants could help excite black voters, a key Democratic constituency.Harris endorsed Biden after dropping out of the race, but her earlier criticism of him during a Democratic primary debate about his opposition to school busing rankled some people close to Biden.