…Mr. Mueller is investigating whether Mr. Trump, by dictating the comment, revealed that he was trying to cover up proof of the campaign’s ties to Russia — evidence that could go to whether he had the same intention when he took other actions.
The president’s lawyers argued that the statement is a matter between the president and The Times — and the president’s White House and legal advisers have said for the past year that misleading journalists is not a crime.
Mr. Trump’s lawyers also try to untangle another potential piece of evidence in the obstruction investigation: his assertion, during an interview with Lester Holt of NBC two days after Mr. Comey was fired, that he was thinking while he weighed the dismissal that “this Russia thing” had no validity. Mr. Mueller’s investigators view that statement as damning, according to people familiar with the investigation.
But the lawyers say that news accounts seized on only part of his comments and that his full remarks show that the president was aware that firing Mr. Comey would lengthen the investigation and dismissed him anyway.
The complete interview, the lawyers argued, makes clear “he was willing, even expecting, to let the investigation take more time, though he thinks it is ridiculous, because he believes that the American people deserve to have a competent leader of the F.B.I.”