The CIA has allegedly rejected the Senate Judiciary Committee's request to access certain information about Russian interference in last year's election.

“We were turned down,” said Sen. Dianne Feinstein Dianne Emiel FeinsteinMcConnell says Trump nominee to replace Ginsburg will get Senate vote Top Democrats call for DOJ watchdog to probe Barr over possible 2020 election influence Intensifying natural disasters do little to move needle on climate efforts MORE (Calif.), the ranking Democrat on the panel, according to Monday reports.

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Feinstein called the agency's decision a disappointment, but said the "issue isn't finished."

Panel Chairman Chuck Grassley Charles (Chuck) Ernest GrassleySenate Republicans face tough decision on replacing Ginsburg What Senate Republicans have said about election-year Supreme Court vacancies Biden says Ginsburg successor should be picked by candidate who wins on Nov. 3 MORE (R-Iowa) and Feinstein had asked CIA Director Mike Pompeo Michael (Mike) Richard PompeoHouse panel halts contempt proceedings against Pompeo after documents turned over Outgoing ambassador to China slams Beijing over coronavirus: 'Could have been contained in Wuhan' Hillicon Valley: FBI chief says Russia is trying to interfere in election to undermine Biden | Treasury Dept. sanctions Iranian government-backed hackers MORE to view the same material related to the ongoing Russia probe that the agency had shared with the Senate Intelligence Committee.

The CIA ultimately declined the request of leaders of Judiciary panel.

Feinstein said the documents relate to matters of obstruction of justice, which fall within the panel's jurisdiction.

Both the Senate Intelligence and Judiciary committees have signaled an interest in social media companies' possible role in pushing messages planted by foreign agents who aimed to sway the election.

“There should be a hearing on this issue, because it relates directly to our oversight of the Department of Justice and the FBI, and these ads raise profound and pressing questions that have to be explored so the public is aware of this threat,” said Sen. Richard Blumenthal (D-Conn.), a member of the Judiciary panel, according to Politico.

Special counsel Robert Mueller is also leading an independent investigation on behalf of the Justice Department in addition to several congressional panels who are looking into where and how Russia meddled in the presidential election.