A potential bill to prohibit ZTE Corp. and other Chinese telecommunications companies from operating in the U.S. would have supermajority support in Congress, Republican Sen. Marco Rubio said.

"Most members of Congress have come to understand the threat China poses," Rubio said on CBS's "Face the Nation" on Sunday when asked whether President Donald Trump would sign such a measure. "There's a growing commitment in Congress to do something about what China is trying to do to the United States. And this is a good place to start."

Rubio was responding to Trump's proposal to allow the telecom firm to remain in business after paying a $1.3 billion fine, changing its management and board, and providing "high-level security guarantees." The president has suggested the deal is a favor to Chinese President Xi Jinping as the two nations hold talks to prevent a trade war.