'The president knew everything': Key Trump impeachment figure unexpectedly arrives at Capitol Hill demanding to testify

Rudy Giuliani associate Lev Parnas has shown up unexpectedly on Capitol Hill, where he is demanding to meet with senators to tell his side of the impeachment scandal story.

Mr Parnas was spotted by reporters as he arrived, and asked what he would tell senators if he were able to get an audience with them.

"Call the witnesses," Mr Parnas responded. "The president knew everything."

He continued, claiming that there were "many quid pro quos" beyond the one apparently highlighted in the 25 July phone call between Donald Trump and Ukrainian president Volodymyr Zelensky in which the American asked for an investigation by the Ukrainian government into a domestic political rival. That phone call sparked a whistle blower complaint, and later the impeachment investigation that has led now to Mr Trump's trial in the Senate.

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