"No," Trump said when asked if he has been subpoenaed by Mueller.
Mueller's office interviewed former White House Chief Strategist Steve Bannon last week regarding claims made privately by former Trump adviser Roger Stone about emails from the Democratic National Committee, which US prosecutors say were hacked by Russian operatives, the Washington Post reported on Tuesday citing people familiar with the investigation.
READ MORE: Trump Says to 'Probably' Answer Some Mueller Questions as Part of Russia Probe
Mueller's office is trying to determine if WikiLeaks coordinated with Stone and the Trump campaign on the timing of the release of the emails, the report said.
Trump and Russia have repeatedly denied the allegations of collusion, and Russian officials have said the claims Russia interfered in the US election were made up to excuse the loss of a presidential candidate as well as deflect public attention from actual instances of election fraud and corruption.