Story highlights Democrats are discussing their closed-door briefing with the deputy Attorney General

Rod Rosenstein also briefed senator on Thursday in a similar briefing

(CNN) Deputy Attorney General Rod Rosenstein on Friday defended the now-famous memo he wrote to President Donald Trump, which the President initially cited as a recommendation to fire FBI Director James Comey earlier this month.

Rosenstein, according to his a copy of his prepared remarks at a briefing before the US House of Representatives, said that he learned on May 8 that Trump intended to fire Comey and that Trump sought Rosenstein's "advice and input" that same day.

The next day Rosenstein issued the memo to Trump, and Comey was swiftly dismissed.

While Rosenstein said he "chose the issues to include in my memorandum" and believed it was time for new leadership at the FBI, he also said his memo was "not a statement of reasons to justify a for-cause termination."

"I wrote it. I believe it. I stand by it," Rosenstein's statement said.

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