BBC在线收听下载:卡马拉·哈里斯退出2020年总统大选

BBC news with Debbie Russ.

The U.S Congressional Committee leading the impeachment inquiry into president Trump says it's uncovered overwhelming evidences that he abused his powers. In its eagerly awaited report, it also accuses Mr Trump of intimidating witnesses and instructing staff to ignore subpoenas. The committee chair Adam Schiff said if Congress did not punish Donald Trump for his actions, it will be, as he put it, begging for more of the same. The White House described the inquiry as a one-sided sham process and said the Democrats had utterly failed to produce any evidence of wrongdoing.

The California senator Kamala Harris is ending her campaign for the democratic party's presidential nomination. She said she would continue to fight for people whose voices were ignored.

The French president Emmanuel Macron has defended his stance on NATO and said the alliance must be clear about its fundamental aims. At the gathering of the alliance leaders in London, Mr.Macron said there had to be a new nuclear disarmament treaty and warned of internal divisions.

Scientists have succeeded in developing artificial neurons that respond to signals from the never system. They can be turned into medical implants powered by silicon chips that require tiny amounts of energy. In future,  this should be used to repair damage nerve or brain cells.

The space entrepreneur Elon Musk has gone on trial for defaming one of the divers who helped rescue 12 boys and their football coach in Thailand last year. Mr.Musk called the man a pedophilia after he criticised the suggestion of using a small submarine to reach the boys in a flooded cave.

The Brazilian president Jair Bolsonaro has issued a decree, putting three national parks into private hands. They include the world famous Iguacu falls shared with Argentina and two large areas of sun dunes and beaches in Northern Brazil.

BBC news.