John Kelly
© Aaron P. Bernstein/Getty ImagesPresident Donald Trump stands with John Kelly.
President Trump left a Monday meeting with FBI Director Christopher Wray and Deputy Attorney General Rod Rosenstein with an agreement on future steps to facilitate the release of Russia-probe documents to Congress.

White House press secretary Sarah Sanders said the men "agreed that White House Chief of Staff Kelly will immediately set up a meeting with the FBI, DOJ, and DNI together with Congressional Leaders to review highly classified and other information they have requested."

House Intelligence Committee Republicans led by chairman Rep. Devin Nunes, R-Calif., have sought unsuccessfully to see certain documents on the FBI's probe of possible Trump campaign collusion with Russia, including on its use of an informant.

In addition to plans for a Kelly-organized meeting, Trump left the meeting with reassurance that the Justice Department's inspector general would review whether there was politically motivated infiltration or surveillance of the Trump campaign.

Rosenstein asked the inspector general to review the matter Sunday afternoon, following a tweet from Trump that he would "officially" ask "that the Department of Justice look into whether or not the FBI/DOJ infiltrated or surveilled the Trump Campaign for Political Purposes."

Trump, Wray, and Rosenstein were joined in the meeting by Director of National Intelligence Dan Coats, a former Republican senator from Indiana.

"Based on the meeting with the President, the Department of Justice has asked the Inspector General to expand its current investigation to include any irregularities with the Federal Bureau of Investigation's or the Department of Justice's tactics concerning the Trump Campaign," Sanders said in her statement.

Following initial reports of an FBI informant linked to his campaign, Trump wrote on Twitter last week that it would be "bigger than Watergate" if there was an "embedded informant" on the campaign, and tweeted, "Apparently the DOJ put a Spy in the Trump Campaign."

Subsequent reporting indicated the informant was a Cambridge University professor, who was not embedded in the campaign but sought out meetings with campaign advisers Carter Page and George Papadopoulos, and with Trump campaign co-chair Sam Clovis.

The inspector general review of the matter will accompany an ongoing probe launched in March regarding the FBI's use of an opposition research dossier compiled by former British spy Christopher Steele to get a 2016 Foreign Intelligence Surveillance Court order to surveil Page.