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Blockchains are digital, decentralized and continually updating public ledgers of information, and the technology has been applied in many fields to record data securely.

Booker also said later he "would bring creativity to the office" that has never been seen before. The former mayor of Newark, New Jersey, said gentrification in cities was leading to further racial segregation.

Bolivia's Minister of Rural Development Cesar Cocarico said that this South American country has worked in recent years to gain access to China's market, especially for agricultural goods.

Birx added that 28 percent of tests for coronavirus in the region were coming up positive, while in the rest of the country, the rate is less than 8 percent.

Booshaka:?Sunnyvale, California