Washington (CNN) Rudy Giuliani, President Donald Trump's attorney, said Sunday that "truth isn't truth" when explaining that he won't let special counsel Robert Mueller rush Trump into testifying because he doesn't want investigators to trap the President into a lie.

"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. Not the truth," Giuliani told NBC's Chuck Todd on Sunday morning during "Meet the Press."

"Truth is truth," Todd said in response.

"No, no, it isn't truth," Giuliani said. "Truth isn't truth. The President of the United States says, "I didn't ..."

"Truth isn't truth?" Todd interjected. "Mr. Mayor, do you realize, what ... I think this is going to become a bad meme."

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