(Bloomberg) — A group of Republican senators sent a letter to the Trump administration Wednesday outlining their opposition to a proposed deal between Oracle Corp. and ByteDance Ltd. that would allow the Chinese company to maintain majority ownership of TikTok, despite an order by the U.S. president that the popular video app sever its ties to China on national security concerns.The lawmakers are trying to get ahead of a ruling expected this week by the Committee on Foreign Investment in the U.S., or Cfius, on a plan that includes Oracle as a “trusted technology partner.” TikTok sent a proposal to the U.S. Treasury Department over the weekend and Treasury Secretary Steven Mnuchin said the committee’s members would deliver a verdict to President Donald Trump this week.The deal, which needs the blessing of Trump and the Chinese government to become final, would create what Mnuchin called “TikTok Global.” It would see a newly structured global company headquartered in the U.S., with Oracle and other U.S. investors taking minority stakes in the business.The proposal stands in stark contrast to the original outlines of a deal requested by Trump, which required TikTok’s Chinese parent to sever ties with the app in the U.S. and agree to an outright sale of the U.S. operations. Now, lawmakers are questioning how any deal in which ByteDance Ltd. remains the majority owner of the app and retains control over TikTok would address the U.S. government’s national security concerns.“We remain opposed to any deal that would allow China-based or controlled entities to retain, control or modify the code or algorithms that operate any U.S.-based version of TikTok,” wrote the group, which included senators Marco Rubio, Thom Tillis, Roger Wicker, Rick Scott, Dan Sullivan, and John Cornyn.“We are heartened that this deal still requires government approval, and if reports indicating this proposed deal will retain links to Bytedance or other Chinese-controlled entities, we strongly urge the Administration to reject such a proposal on national security grounds,” they said.Republican Senators Josh Hawley and Marsha Blackburn have also pushed back against the deal. Regardless of where the data is stored, the U.S. shouldn’t allow China to retain “control over U.S. consumer data and allow them to expand their spy network,” Blackburn said in a Wednesday interview with Fox Business. “Period. End of sentence. That is it.”In a speech to the National Democratic Institute on Wednesday, Senator Mark Warner of Virginia, the top Democrat on the Senate Select Committee on Intelligence, criticized how the Trump administration has handled the TikTok deal in ways that will invite retaliation.“When we draw lines to prohibit certain technologies that don’t meet those principles from entering the U.S., it must be done honestly or else it smacks of the kind of protectionism that we have fought against in managed economies,” Warner said. “To this end, the Trump administration’s Clean Network Initiative and haphazard actions on TikTok fail that test and will only invite retaliation against American companies.”(Updates with comments from senator in last paragraph.)For more articles like this, please visit us at bloomberg.comSubscribe now to stay ahead with the most trusted business news source.©2020 Bloomberg L.P.