They could be wrong, ' he added.
"Of course we have to see (the report) before it goes to Congress", Giuliani said.
Mr. Giuliani said the special counsel brought up possibly having follow-up questions, but Mr. Trump's lawyers said their client would not answer them.
His comments came Thursday during an interview with The Hill. Trump may still invoke executive privilege to block parts of the report from being released to Congress and the public.
Experts quickly laughed off Giuliani's assertion that the president can "correct" an investigative report into his own actions.
National security attorney Bradley Moss wrote that it was "arrogantly moronic" to think "the subject of an investigation gets to "correct" prosecutor's findings".
Trump's lawyers and Mueller's team have had no contact since then, Giuliani said.
CNN also reported that investigators are examining whether conflicting public statements by Trump and his team would be considered an attempt to obstruct justice. Deputy Attorney General Rod Rosenstein, who appointed him, announced that he will be stepping down soon, later clarifying he would stay until Mueller finished his work.
The regulations governing a special counsel state at the at the conclusion of the probe, the special counsel deliver a confidential report to the attorney general.
During the interview with The Hill, the former New York City mayor made light of Trump's former personal attorney Michael Cohen's intention to testify in public before the House Oversight and Reform Committee on february 7. "I have no concerns about Cohen at all because I can prove with very little effort that he is a total, complete and absolute liar", he told The Hill.
Giuliani also used a portion of the interview to shrug off the recent news that Paul Manafort shared poll data with a former business acquaintance believed to be connected with Russian intelligence.
"There is no legal protection of polling data".
"We weren't convinced they had any questions they don't know the answer to".