ChainCatcher News: U.S. President-elect Donald Trump nominated Kevin Hassett as the Director of the National Economic Council and Jamieson Greer as the U.S. Trade Representative on Tuesday local time, filling two key positions in his economic team.These two positions will directly influence much of Trump's economic agenda: imposing new tariffs and tax cuts. Greer is a longtime protégé and deputy of Robert Lighthizer, who served as Trump's U.S. Trade Representative for four years. His selection underscores that tariffs will play a central role in Trump's economic agenda. Hassett is also a veteran of Trump's White House, having served as a senior advisor and chairman of the Council of Economic Advisers. He is a strong advocate for the Republican Party's signature tax policies, and Trump has vowed to extend these policies when many tax cuts expire next year. (Jinshi)