Russia announces Navalny's alleged cause of death - Biden meets widow and daughter. Biden expressed condolences after the Russian opposition leader's team said the official death certificate showed his death in prison as "natural causes" His family and team claim he was murdered and that authorities refused to release his body to cover up evidence.

Biden has said that Russian President Vladimir Putin is "responsible for Navalny’s death," and he has told Yulia and Daria Navalnaya that he will announce sweeping new sanctions on Friday.