US House Judiciary Committee Chair Jerry Nadler has subpoenaed former White House counsel Don McGahn to testify before the panel in its investigation of possible obstruction of justice by US President Donald Trump, Reuters reports.
According to Reuters, Committee's Chairman Nadler said the committee had asked for documents from McGahn by 7 May and for him to testify on 21 May.
"Mr. McGahn is a critical witness to many of the alleged instances of obstruction of justice and other misconduct described in the Mueller report," Nadler said as cited by Reuters.
According to the Mueller's report, White House Counsel Don McGahn had been on the brink of resigning when Trump told him to ask Deputy Attorney General Rod Rosenstein to fire Mueller. Trump then denied using the word "fire," Reuters reports citing McGahn's retelling to Mueller.
The Judiciary Committee is requesting documents related to former National Security Adviser Michael Flynn, former FBI Director James Comey's termination and other items related to Mueller's investigation.
The Judiciary Committee is also seeking documents related to former US Attorney General Jeff Sessions' resignation and details on whether or not pardons are possible for Trump associates such as Roger Stone, Paul Manafort, Flynn, Michael Cohen, Rick Gates and others.
Last Thursday the US Department of Justice released a redacted copy of Special Counsel Mueller's investigation into whether Russia interfered in the 2016 election and whether then-candidate Donald Trump colluded with Russian officials in order to secure a victory in the elections.
The report found no evidence of collusion between any member of the Trump campaign and Moscow. However, it detailed some instances where Donald Trump may have tried to obstruct the investigation, but his attempts failed largely because of his officials refusing to accede to his requests.
Russia has repeatedly refuted any claims of interference in the US political system, saying the allegations were made up to excuse the election loss of Trump's opponent as well as deflect public attention from actual instances of election fraud and corruption.