U.S. Trade Representative Robert Lighthizer will lead the next rounds of trade talks with China and he will push Beijing aggressively on making structural changes to its policies, White House trade policy adviser Peter Navarro told National Public Radio Monday.

“He’s the toughest negotiator we’ve ever [had] at the USTR and he’s going to go chapter and verse and get tariffs down, non-tariff barriers down and end all these structural practices that prevent market access,” Navarro said.