(CNN) House Intelligence Chairman Adam Schiff is demanding that the intelligence agencies keep him up to date on the review Attorney General William Barr is conducting of the origins of the FBI investigation into the 2016 Trump campaign and Russia.

In letters sent Friday to Director of National Intelligence Dan Coats, FBI Director Christopher Wray, CIA Director Gina Haspel and National Security Agency Director Gen. Paul Nakasone, Schiff slammed President Donald Trump for granting Barr sweeping powers to declassify intelligence as part of his review, accusing the President and attorney general of trying to "further a conspiracy theory about the investigation of Russia's interference in the 2016 election."

The California Democrat requested that the agencies brief his panel on the Justice Department review, provide the committee with any intelligence community materials turned over in the review and inform the committee if they object to anything that Barr declassifies. He said his committee would conduct oversight of the review "to ensure that the Attorney General does not abuse his new and sweeping authority."

"The directive seeks to enlist your agencies in an effort by the President and the Attorney General to politicize the IC and law enforcement, to delegitimize a well-founded investigation into the President, and to attack the President's political enemies," Schiff wrote in the letter, which was obtained by CNN.

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