Analysts: Taylor's testimony about the call is key

Public hearings began in Congress where the testimonies of the American diplomat Bill Taylor and the State Department official George Kent are heard. Diplomat Bill Taylor spoke to Congress about a July 26 telephone call, a conversation that took place one day after Trump's telephone call with Ukrainian President Volodymyr Zelensky. Taylor revealed in his statement that his staff was told that President Trump was more concerned with "Biden investigations" than Ukraine.