President Trump Donald John TrumpBiden says voters should choose who nominates Supreme Court justice Trump, Biden will not shake hands at first debate due to COVID-19 Pelosi: Trump Supreme Court pick 'threatens' Affordable Care Act MORE on Friday denied a report that he still uses a personal cell phone to make calls, insisting that he relies solely on phones issued and approved by the government.

“Fake News @CNN is reporting that I am 'still using personal cell phone for calls despite repeated security warnings.' This is totally false information and reporting," Trump tweeted.

"I haven’t had a personal cell phone for years. Only use government approved and issued phones. Retract!” he added.

Fake News @CNN is reporting that I am “still using personal cell phone for calls despite repeated security warnings.” This is totally false information and reporting. I haven’t had a personal cell phone for years. Only use government approved and issued phones. Retract! — Donald J. Trump (@realDonaldTrump) December 6, 2019

The tweet came in response to a CNN report Friday evening saying that Trump still uses his personal device to make calls in spite of warnings from staffers about the threat of foreign surveillance. The network cited "multiple officials" for its report.

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CNN reporter Zachary Cohen, one of the authors of the story, said in a tweet that the network stood by its reporting.

The report comes after witnesses in the House impeachment inquiry testified that top administration officials did not follow protocol to protect phone conversations — including discussions with Trump — from foreign interception.

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The House Intelligence panel also released a slate of phone records showing communications between Trump's personal attorney Rudy Giuliani Rudy GiulianiThe Hill's Campaign Report: GOP set to ask SCOTUS to limit mail-in voting CIA found Putin 'probably directing' campaign against Biden: report Democrats fear Russia interference could spoil bid to retake Senate MORE; Ukrainian American businessman Lev Parnas; the Intelligence Committee's ranking member Rep. Devin Nunes Devin Gerald NunesOvernight Defense: Stopgap spending measure awaits Senate vote | Trump nominates former Nunes aide for intelligence community watchdog | Trump extends ban on racial discrimination training to contractors, military Trump nominates former Nunes aide to serve as intel community inspector general Sunday shows preview: Justice Ginsburg dies, sparking partisan battle over vacancy before election MORE (R-Calif.); conservative columnist John Solomon, formerly of The Hill; and the White House's budget office.

The records do not explicitly name Trump, though Intelligence Committee Chairman Adam Schiff Adam Bennett SchiffSchiff to subpoena top DHS official, alleges whistleblower deposition is being stonewalled Schiff claims DHS is blocking whistleblower's access to records before testimony GOP lawmakers distance themselves from Trump comments on transfer of power MORE (D-Calif.) said investigators are looking into an "unidentified" number designated simply as "-1" in the logs, saying it could be associated with the president.

Congress’s ability to subpoena the phone records indicate that the calls were likely not made on a secure line and not made using an app that encrypts phone conversations, CNN noted.