Tapper asked Giuiliani directly about it.
The president was asked by reporters Friday about the possibility of pardons for some of the former members of his campaign and White House.
In a subsequent interview on Sunday with CBS's "Face The Nation" show, Giuliani said the Mueller probe should face both an internal government investigation by the Justice Department's inspector general and a grand jury probe.
"When it's over? Hey, he's the President of the United States, he retains his pardon power", Giuliani said.
"If the president counsels crimes personally or participates in a crime personally", Sunstein said, "and then exercises the pardon power so as to shelter the people who engaged in those crimes, the Virginia debate is very clear".
Manafort will be in jail for the next three months awaiting trial on charges that now include witness tampering.
Watch the clip above, courtesy of CNN.
"Let me make it clear, right now, anybody listening", Giuliani told CNN's Chris Cuomo, "He is not going to pardon anybody in this investigation".
"When the whole thing is over, things might get cleaned up with some presidential pardons", Giuliani told the New York Daily News.
Sen. Susan Collins of ME said on CBS' "Face the Nation" that she thought it was helpful Giuliani has recommended against pardons.
The report also revealed instant messages between an unidentified Federal Bureau of Investigation attorney and an Federal Bureau of Investigation employee the day after the election in which the employee wrote, "I can't stop crying".
"But there is a lot of unfairness out there", he continued. "No, I don't want to talk about that", the president responded - though he did say "I do want to see people treated fairly". "I think if I could get those pictures of them crying". "That's why you don't want to go under oath until everything is settled and you're sure of your recollection".
"After they get slapped around for their excessively zealous behavior, they go and do something that proves Horowitz is right", Giuliani said of Manafort's incarceration.
Giuliani added that Trump's legal team would try to limit any interview with Mueller "to some specific questions about the heart of the probe" that they think "could be answered quickly" - in about three hours, he said.
Giuliani also called on the Justice Department to investigate the Mueller probe, "not because of Mueller but because of its genesis", he said, referring to a report the inspector general put out last week on the FBI's Clinton email probe.
"No, he won't. We'll stop it", Strzok replied back. Several officials who worked on the Clinton probe also worked on the bureau's Russian Federation investigation, but the report found no evidence that political leanings affected any decisions made during the Clinton probe.