“We were about 90% of the way there [with a deal] and I think there’s a path to complete this,” he told CNBC’s Hadley Gamble in Manama, Bahrain.

He said he’s confident Trump and the Chinese president can make progress in stalled trade talks at the Group of 20 meeting. “The message we want to hear is that they want to come back to the table and continue because I think there is a good outcome for their economy and the U.S. economy to get balanced trade and to continue to build on this relationship.”

He did not provide any detail on what the final 10% of an agreement might entail, or what the sticking points are to completing a deal.