Mueller and his team are investigating whether Russia and Trump's Republican campaign co-ordinated to influence the outcome of the 2016 presidential election and whether the latter worked to obstruct an FBI investigation into his aides.
"The President's legal team has been preparing for the expected request for months. Trump's lawyers have said they are hoping for the investigation to wrap up quickly," CNN report said.
The matter was broached in a previous meeting and both sides are expected to explore it further in the coming talks.
A January 2017 assessment by the Office of the Director of National Intelligence stated that Russian leadership preferred presidential candidate Trump over Hillary Clinton and that Russian President Vladimir Putin personally ordered an "influence campaign" to harm Clinton's electoral chances and "undermine public faith in the US democratic process".
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