insert_link World U.S president Joseph Biden wants to triple US tariffs on Chinese steel and aluminum, increasing the import tax to 25%. U.S president Joseph Biden wants to triple US tariffs on Chinese steel and aluminum, increasing the import tax to 25%. Biden is visiting steelworkers in the battleground state of Pennsylvania as he looks to win over unions as part of reelection bid. Nick Harper reports from Washington. todayApril 18, 2024 16