Democrat Joe Biden chooses U.S. Senator Kamala Harris for White House running mate

Sen. Kamala Harris, (D-CA), speaks during a Senate Judiciary Committee business meeting to consider authorization for subpoenas relating to the Crossfire Hurricane investigation, and other matters on Capitol Hill in Washington, June 11, 2020. Carolyn Kaster/Pool via REUTERS

(Reuters) - Democratic presidential candidate Joe Biden on Tuesday picked Senator Kamala Harris as his choice for vice president, making her the first Black woman on a major-party U.S. presidential ticket and giving him a partner well prepared to go on the attack against Republican President Donald Trump.

With social unrest over racial injustice rocking the country for months, Biden had been under increasing pressure to select a Black woman as his running mate. Harris is also the first Asian-American on a major presidential ticket.