U.S. President Donald Trump's threat of a 50% tariff on copper imports is raising alarm in the U.S. auto sector, as it could make it even harder for carmakers and suppliers to absorb border taxes and rising costs,

President Donald Trump has announced a 50% tariff on all copper imports, a move that could shake industries across the country. This means that companies bringing copper into the U.S. from other countries will have to pay half the value of that as a fee.

The Trump administration's tariff strategy is reshaping global trade dynamics, with aluminum, copper, and steel at the forefront. As tariffs become a central tool in U.S. foreign and trade policy, these key metals face increased scrutiny,

News looked into how industries in East Tennessee, many of which rely on copper, could be affected if the tariff goes into effect.

Global stocks advanced on Thursday, underpinned by optimism around artificial intelligence and the prospect of upcoming interest rate cuts, while investors kept a cautious eye on U.S. President Donald Trump's tariff actions and their impact on global trade.

President Trump is threatening new 50% tariffs on copper and up to 200% on pharmaceutical imports. He also announced new tariffs on six countries. NBC News' Vaughn Hillyard reports the latest. Veda Partners Managing Partner Henrietta Treyz and University of Michigan Professor of Economics and Public Policy Justin Wolfers join Katy Tur to break down the economic impact of Trump's policies on Americans.

U.S. President Donald Trump's announcement of a proposed 50% tariff on copper imports has raised concerns in Chile and Peru, which together account for nearly 40% of global copper production.