Trump took to Twitter on Saturday and said, "This memo totally vindicates "Trump" in probe. But the Russian Witch Hunt goes on and on. There was no Collusion and there was no Obstruction (the word now used because, after one year of looking endlessly and finding NOTHING, collusion is dead). This is an American disgrace!"
"We write to inform you that we would consider such an unwarranted act as an attempt to obstruct justice in the Russia investigation. Firing Rod Rosenstein, DOJ (Department of Justice) leadership or Bob Mueller could result in a constitutional crisis...," the Democrats said in a letter to the President.
The controversial Nunes memo was released on Friday after Trump gave a green signal to it.
"I think it's a disgrace. A lot of people should be ashamed of themselves," Trump said in Oval Office after approving the memo.
"It was declassified and let's see what happens," Trump added.
In a rare public statement on Wednesday, the FBI had said: "We are gravely concerned that critical facts are missing from the documents and has painted an inaccurate picture of how the bureau sought approval to conduct surveillance in the probe."
Russia, however, has denied meddling in the election campaign and Trump has called Mueller's probe a "political witch hunt".