World trade is on track to expand by 2.4 percent this year, though there is “deep uncertainty” about economic and policy developments, particularly in the United States, the World Trade Organization (WTO) said on Wednesday.

WTO director-general Roberto Azevedo said that clarity was still needed on U.S. President Donald Trump’s trade policies, while making a general appeal to resist protectionism.

The results of upcoming elections in major economies including France should provide more predictability for investors, he said.

The range for growth this year has been adjusted to between 1.8 and 3.6 percent, from 1.8 to 3.1 percent last September, the WTO said.

“We should see trade as part of the solution to economic difficulties, not part of the problem,” Azevedo said.

“Overall I think that while there are some reasons for cautious optimism, trade growth remains fragile and there are considerable risks on the downside. Much of the uncertainty