"People who lie are held accountable", he continued.
Trump and Mueller's legal teams meanwhile have been locked in ongoing negotiations over a potential interview with the president. You're left to wonder, is Giuliani afraid that Mueller has trouble distinguishing the truth from "the truth" or is he afraid that Trump does?
Emails between Trump Jr., and his father's business associate - emails that the younger Trump himself published on Twitter - directly contradict Giuliani's assertion.
"When you tell me that, you know, he should testify because he's going to tell the truth and he shouldn't worry, well, that's so silly because it's somebody's version of the truth". "If someone said, I have information about your opponent, you would take that meeting".More news: Nick Jonas confirms engagement to Priyanka Chopra with sweet 'Mrs Jonas' snap
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Giuliani, however, said Comey was let go for refusing to say Trump was not the target of the investigation - even though Comey and Trump both agreed he did so privately on multiple occasions.
Even though he is supposed to be giving legal advice, Giuliani has occasionally freelanced on White House matters - eventually forcing the State Department to declare the president's lawyer does not speak for the USA government.
Russian Federation also denies claims it interfered in the polls two years ago, which saw Donald Trump defeat Democratic rival Hillary Clinton.
While the "truth isn't truth" line received most of the attention, Oliver said "in fairness to Giuliani ― the Ken Bone of 9/11 ― that was not the dumbest thing he said in that interview". Todd recognized it immediately too, noting that Rudy's line was apt to turn into a "bad meme".
Setmeyer also said Guiliani's semantics quandary was right up there with then-President Clinton's response during his grand jury testimony in 1998 when he tried to question the meaning of "is" on whether he lied about having an affair with intern Monica Lewinsky.