Trump, Xi could meet next month on trade: White House aide

US President Donald Trump and China's Xi Jinping could meet next month on the sidelines of the G20 summit to hash out their differences on trade, but no new talks are scheduled, White House economic advisor Larry Kudlow said Sunday.

The world's top two economies ended two days of negotiations in Washington on Friday with no deal. While making it clear that the US was unwilling to settle, Kudlow sought to tamp down concerns, insisting the process was ongoing.

"We need to see something much clearer and until we do, we have to keep our tariffs on," Kudlow said in an interview on "Fox News Sunday," adding: "We can't accept any backtracking."

As for future negotiations, while there are "no concrete, definite plans yet," Kudlow said China had invited Treasury Secretary Steven Mnuchin and US Trade Representative Robert Lighthizer to Beijing -- and higher-level discussions could be on the cards.

The chances of Trump and Xi meeting during the Group of 20 summit in Japan in late June "are ...