Washington (CNN) President Donald Trump said Friday he is concerned he could open himself up to perjury if he sits down with special counsel Robert Mueller for questioning, echoing the worries of his personal attorneys.

"Everybody that looked at anybody over there, they get him on some kind of a lie," Trump said, referring to the special counsel's office, before referencing his former national security adviser Michael Flynn and former campaign adviser George Papadopoulos, both of whom have pleaded guilty to lying to federal investigators.

"So, I don't want to be set up with a perjury trap, No. 1. No. 2, there was no obstruction and there was no collusion," Trump said.

Trump's comments echoed the message from his personal legal team, which has repeatedly expressed concerns that Trump could perjure himself if he sits down with Mueller. Rudy Giuliani, one of Trump's attorneys, famously said last month that he believes Trump could face perjury charges even if he tells the truth, saying: "Truth isn't truth."

In a free-wheeling session with reporters aboard Air Force One, the President also said that while he would sit down with Mueller "under certain circumstances," he said he believes sitting down for an interview would be "a big waste of time."

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