US Democrats suffer a big blow at Trump's impeachment trial

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US Democrats have suffered a big blow in their effort to call witnesses at President Trump's impeachment trial, with a wavering Republican senator coming out against the move. The spread of coronavirus is now officially a global health emergency and with the number of infections and deaths growing daily, airlines have suspended flights to Chinese cities, including operators from African countries. And we go to Nigeria where residents in Port Harcourt have been told to stay indoors, because of air pollution brought on by black soot.