Sen. Mark Warner, D-Va., says former President Donald Trump "was right" to go after the China-owned video-sharing app TikTok.

Warner made the comments during an appearance on Fox News Sunday, telling host Shannon Bream that the app represents a major threat to Americans' privacy. He also warned parents against allowing their children to download the app on their phones.

"Well, I think Donald Trump was right. I mean, TikTok is an enormous threat," Warner told Bream. "So, if you're a parent, and you've got a kid on TikTok, I would be very, very concerned. All of that data that your child is inputting and receiving is being stored somewhere in Beijing."

Warner is only the most recent in a series of U.S. politicians and officials to call for a crackdown on TikTok. FCC Commissioner Brendan Carr called on regulators to ban the app in the U.S., and FBI Director Christopher Wray warned that it contributes to China's status as the No. 1 thief of U.S. data in the world.

"China’s vast hacking program is the world’s largest, and they have stolen more Americans’ personal and business data than every other nation combined," Wray told lawmakers last week, adding specifically of TikTok: "[Dangers] include the possibility that the Chinese government could use it to control data collection on millions of users or control the recommendation algorithm, which could be used for influence operations if they so chose or to control software on millions of devices, which gives the opportunity to potentially tactically compromise personal devices."

STUDY FINDS 10% OF US ADULTS USE TIKTOK TO GET THEIR NEWS REGULARLY, UP FROM 3% IN 2020

Senate Intelligence Committee chair Mark Warner

Sen. Mark Warner, D-Va., speaks during an oversight hearing, Dec. 7, 2021, in Washington. (Anna Moneymaker/Getty Images)

Donald Trump speaks at CPAC

Former President Donald Trump speaks at the Conservative Political Action Conference, Aug. 6, 2022, in Dallas. (Brandon Bell/Getty Images)

Wray's statement came just weeks after Carr called for the U.S. to outright ban TikTok, arguing that efforts to separate its U.S.-based branch from its headquarters in China were pointless.

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"I don’t believe there is a path forward for anything other than a ban," he told Axios at the time, adding that there isn't "a world in which you could come up with sufficient protection on the data that you could have sufficient confidence that it’s not finding its way back into the hands of the [Chinese Communist Party]."

TikTok pushed back on Carr in a statement to FOX Business, arguing that the commissioner has no role in discussions with the Committee on Foreign Investment in the United States (CFIUS). The FCC has no authority to regulate TikTok, which is why Carr and others critical of Chinese apps have urged other federal agencies and Congress to take action.

The TikTok logo is seen on an iPhone 11 Pro max in this photo illustration in Warsaw, Poland on September 29, 2020. The TikTok app will be banned from US app stores from Sunday unless president Donald Trump approves a last-minute deal between US tech firm Oracle and TikTok owner ByteDance. US authorities say the Chinese video sharing app threaten national security and could pass on user data to China. (Photo by Jaap Arriens/NurPhoto via Getty Images)

TikTok, the popular social media app with close ties to Communist China and Chinese state media outlets, has permanently banned at least 11 pro-free speech organizations, according to the Media Research Center. (Jaap Arriens/NurPhoto via Getty Images)

While TikTok representatives have insisted that users' data are safe, executives for the company have admitted under oath that the data is accessible from China.

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That access is used frequently as well, as was revealed in an extensive report from BuzzFeed earlier this year. The outlet obtained audio from more than 80 internal meetings at TikTok, showing that U.S. employees were not permitted to access user data and instead relied on Chinese employees to do so.