Trump impeachment trial set to begin amid damaging new Ukraine revelations
House prosecutors to arrive at Senate to formally open trial as Lev Parnas tells reporters president was fully aware of efforts to pressure Ukraine
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1.45pm GMT
A key player at the heart of the impeachment inquiry, Lev Parnas, has told reporters Donald Trump was fully aware of his efforts to pressure Ukraine to investigate the president’s political rivals, just as the Senate prepares to be sworn-in for the trial.