Memo reaction - as it happened - BBC News
The president releases the document, despite the FBI's "grave concerns".
"Congress has made inquiries concerning an issue of great importance for the country and concerns have been raised about the Department’s performance. I have great confidence in the men and women of this Department. But no Department is perfect.

"Accordingly, I will forward to appropriate DOJ components all information I receive from Congress regarding this. I am determined that we will fully and fairly ascertain the truth.

"We work for the American people and are accountable to them and those they have elected. We will meet that responsibility."

Worth remembering, Trump pilloried Sessions after he recused himself in March last year from the Russia inquiry once it emerged he had not disclosed 2016 meetings with Moscow's ambassador (Sessions said he forgot).

Sessions' recusal meant he no longer had oversight of the Russia inquiry, including - for example - the power to fire the special prosecutor, Robert Mueller, or bury the results of his investigation.

That inquiry is now in the hands of Deputy Attorney General Rod Rosenstein, whose name crops up in the memo as having approved the controversial surveillance warrant applications.

Today Trump was asked if he might use the memo as an excuse to fire Rosenstein. He told reporters: "You'll figure that one out."