Jamieson Greer, President Donald Trump’s nominee for U.S. trade representative, said on Thursday that a universal tariff needs further study to gauge its impact on rising U.S. trade deficits, and put countries on notice they must lower import barriers to maintain access to the U.S. market.

Trump’s trade chief nominee Greer says universal tariff needs more study
Countries must lower trade barriers to enjoy U.S. market access

Trump launches trade war with tariffs on Mexico, Canada and China
Canada strikes back with tariffs on $155 billion of US goods; China says it will take Trump to WTO
U.S. President Donald Trump on Saturday ordered sweeping tariffs on goods from Mexico, Canada and China, demanding they stanch the flow of fentanyl - and illegal immigrants in the case of Canada and Mexico - into the United States, kicking off a trade war that could dent global growth and reignite inflation.

Trump set to impose tariffs on Canada, Mexico and China on Feb. 1 White House says
A White House spokesperson said that no tariff announcements were planned for Friday
U.S. President Donald Trump on Saturday will implement tariffs of 25 per cent on Canadian and Mexican imports and 10 per cent on Chinese goods with immediate effect, White House spokesperson Karoline Leavitt said on Friday.

No day-one tariffs coming from Trump, but trade overhaul planned, official says
President Donald Trump will issue a broad trade memo on Monday that stops short of imposing new tariffs on his first day in office but directs federal agencies to evaluate U.S. trade relationships with China, Canada and Mexico, a Trump administration official said.