Mueller is investigating whether the Trump election campaign in 2016 colluded with Russian efforts to damage his opponent, Hillary Clinton, and whether Trump has sought to illegally obstruct the investigation.
But the span of the investigation also reportedly encompasses Trump’s business dealings, to which Cohen had a front-row seat for years as a senior executive in the president’s real-estate business in New York, the Trump Organisation.
Once known as Trump’s “pitbull” and right-hand man, Cohen was privy to multi-million-dollar deals and payments to two alleged lovers – whose claims could have potentially sabotaged his boss’s 2016 election.
In August, Cohen pleaded guilty to charges involving his arrangement of payouts of hush money to those women – widely thought to be porn star Stormy Daniels and Playboy model Karen McDougal – before the 2016 election.
Hanging Trump out to dry, Cohen testified under oath in court that the president directed him to break campaign finance law, while pleading guilty to bank and tax fraud.