White House National Economic Council Director Larry Kudlow said Tuesday a trade deal between the U.S. and China appears to be moving "in the right direction" but held out the prospect a deal may not get done. His remarks at a Wall Street Journal conference follow similar comments he made to reporters on Monday, when he said he was "cautiously optimistic" on such a deal after President Donald Trump and Chinese President Xi Jingping's meeting in Argentina at the Group of 20. Kudlow said he saw "real chemistry" between the leaders at a dinner meeting at the summit. When told that the administration is asking China to do in 90 days what hasn't been accomplished over the last 20 years, Kudlow said he had no assurances. "I'm just that saying in my judgment, others may disagree, we have come further and that the table of contents is larger than anything we've seen before."