"This just shows the president's contempt for the law, another example of the president's contempt for the law," Nadler told CNN's "State of the Union" with Jake Tapper.
Nadler said the move was "entirely contrary" to the president's essential duty to enforce the law.
"It's the main job of the president, to ensure that laws are faithfully executed," Nadler said. "And for a president, sabotaging this goal by deliberately seeking to break the law is unforgivable."
"I have never offered forgiveness to homeland security officials, never ordered anyone to close our southern border (although I have the absolute right to do so, and that if Mexico does not) 39, do not apprehend the illegals heading for our border), I'm not "frustrated. "These are all false and corrupt information!" Trump said.
Nadler said on Sunday that "forgiveness, even if he was in jest" for breaking the law, was wrong and he planned to look into this type of behavior after he was able to review the report. special advocate, Robert Mueller.
"This is part of a conduct that we must certainly consider after seeing the Mueller report," Nadler said.