U.S. President Donald Trump raised questions on Wednesday about plans by China's ByteDance to keep a majority stake in the U.S. operations of popular social media platform TikTok after six Republican lawmakers urged him to reject the proposal.

Trump said he would be briefed on Thursday about a proposal that calls for Oracle Corp to become a "trusted technology provider" for TikTok's U.S. operations, but he did not favor the idea of having the Chinese firm retain control.

Sen. Marco Rubio and five other Republican senators on Wednesday urged the administration to reject the deal as long as ties remained to Chinese owner ByteDance, and suggested the president could block the proposal.