PHOTO: Getty Images
Now playing
02:06
Fox News hosts diverge on Uranium One deal
This image was taken during the first drive of NASA's Perseverance rover on Mars on March 4, 2021. The team has spent the weeks since landing checking out the rover to prepare for surface operations.
PHOTO: JPL-Caltech/NASA
This image was taken during the first drive of NASA's Perseverance rover on Mars on March 4, 2021. The team has spent the weeks since landing checking out the rover to prepare for surface operations.
Now playing
02:17
NASA releases stunning new images from Mars
PHOTO: ABC's "Jimmy Kimmel Live!"
Now playing
02:09
Sacha Baron Cohen plays Covid vaccine dealer to the stars
PHOTO: CNN
Now playing
04:37
Keilar calls out Tucker Carlson's show: Partisan junk food
PHOTO: MyHeritage
Now playing
01:01
Watch old photos come to life using AI
PHOTO: CNN/Getty Images
Now playing
06:46
McEnany says she expected 'peaceful' rally on January 6. Keilar rolls the tape
Now playing
01:26
No, Tom Cruise isn't on TikTok. It's a deepfake
PHOTO: ABC's "Jimmy Kimmel Live
Now playing
02:02
Eddie Murphy, Arsenio Hall reunite in 'Coming 2 America'
PHOTO: Courtesy AirlingRatings.com
Now playing
03:06
Virgin Atlantic CEO: We support Covid vaccine passports
Now playing
01:19
Warren proposes wealth tax: 'It's time for them to pay a fair share'
Now playing
01:43
Marriott CEO: Vaccinations are 'the key' to travel recovery
(CNN) —  

House Democrats sounded the alarm Tuesday about their Republican counterparts planning to interview a “confidential informant” for the Uranium One probe.

A letter from Reps. Elijah Cummings and Adam Schiff, the top Democrats on the House Oversight and Intelligence committees, respectively, to the GOP chairmen of those committees said Republicans have been in contact with the informant for months without allowing Democrats access.

The Democratic pair further said the Justice Department has already expressed to members of the committees that they had “serious credibility concerns” with the informant, and the two requested Democrats receive a transcript of the expected interview this week.

The letter said Republican staff had informed them there was no full transcription planned for the interview.

House Intelligence Chairman Devin Nunes and Oversight Chairman Trey Gowdy began the investigation last October into an Obama-era Uranium Deal that some have sought to link to former Secretary of State Hillary Clinton. Shortly after the announcement of the investigation, the Justice Department gave a former FBI informant approval to testify for those committee investigations.

In his response to the letter, Gowdy said the interview would take place Wednesday and was arranged by Senate Judiciary Chairman Chuck Grassley’s staff. Gowdy said in his letter to Cummings that “legitimate questions” surrounding Uranium One have materialized, that Democrats have had equal access documents and briefings and that the “committees have not ruled out the prospect of transcribed interviews in this investigation.”

CNN has reached out to Nunes’ office for response to the letter and has not yet received a response.

A letter from the Justice Department to the House Judiciary Committee last November said the department, in response to Republican lawmakers’ calls for a special counsel, would evaluate whether a special counsel is merited into Clinton Foundation ties to the Uranium One deal and other matters.

On the campaign trail and since taking office, President Donald Trump has tried to link the Clinton Foundation to the sale of a Canadian uranium company to Russia, a sale that was approved by a slew of US government departments, including the State Department then-led by Clinton.

CNN’s Manu Raju contributed to this report.