TMTPOST -- U.S. President Donald Trump is vowing new round of tariffs to expand and deepen his trade war this week. Credit:Xinhua News Agency Trump told reporters he planned to announce levies on all steel and aluminum imports into the United States on Monday. ”We’ll also be announcing steel tariffs on Monday,” Trump said on Air Force One en route to the Super Bowl on Sunday. “Any steel coming into the United States is going to have a 25% tariff. “ "Aluminum, too," Trump added, when a reporter asked him whether it would also be subject to tariffs. Trump also said he planned to announce reciprocal tariffs on a news conference on Tuesday or Wednesday. Those new tariffs, which he said will come into effect "almost immediately", seems to deliver his threat during presidential ca