WASHINGTON - US Trade Representative Robert Lighthizer and US Treasury Secretary Steven Mnuchin have agreed with Chinese Vice Premier Liu He to continue trade talks on Friday morning, a White House spokesman said on Thursday. US President Donald Trump met with Lighthizer and Mnuchin on Thursday to discuss the negotiations to rescue a trade deal that is close to collapsing as Washington prepares to go ahead with plans to hike tariffs on hundreds of billions of dollars of goods imported from China.