President Donald Trump announced Friday he was firing a senior intelligence official who had a central role in the complaint last August that sparked the impeachment trial of the US leader. In a letter to the Senate Intelligence Committee, Trump said he had lost confidence in Michael Atkinson, the independent inspector general of the broad US intelligence community. Atkinson reviewed and transmitted an anonymous whistle-blower's complaint in August that alleged that Trump had sought personal political favors from Ukraine in violation of US law. The complaint became the basis for Trump's impeachment, which saw him put through a historic trial for removal in the Senate in January. Ultimately Trump was voted not guilty by the Republican-controlled Senate in early February.