Asked by the Washington Examiner whether he plans to retain his position as Trump's attorney, Giuliani said "probably not".
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He added, however, that he may continue working if the president asks him. "Depends on if I'm needed", Giuliani said.
Giuliani told the newspaper that he is "following up on evidence concerning [the] creation of the false narrative" that Trump campaign colluded with Russia. He recently suggested that Ukraine may be behind the efforts to create a collusion narrative.
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Russia has repeatedly denied any claims of interference in the US political system, saying the allegations were made up to excuse the election loss of Donald Trump's 2016 opponent Hillary Clinton, as well as deflect public attention from actual instances of election fraud and corruption.