Joe Biden announced Tuesday that Kamala Harris will be his running mate for the 2020 election ballot, making the California senator the first Black woman to run on a major political party’s presidential ticket. In selecting Harris, Biden adds a former primary rival who centered her own presidential bid on her readiness to take on Trump and show Americans she would fight for them. She rose to national prominence within the Democratic Party by interrogating Trump nominees during Senate hearings, from former Attorney General Jeff Sessions to Supreme Court Justice Brett Kavanaugh. Harris’ selection comes months after Biden committed to picking a woman to join him on the Democratic ticket. Harris, 55, is now the third woman to serve as a vice presidential candidate for a major political party, following Geraldine Ferraro as the Democratic vice presidential pick in 1984 and Sarah Palin as the Republican vice presidential pick in 2008.