President Donald Trump's second-term economic plan can be summed up in one word: tariffs. When his barrage of these import taxes went into overdrive a month ago, markets trembled, and business leaders sounded alarms about the economic damage they would cause.

The business community in southern Arizona is grappling with tariffs on imports and federal policies impacting tourism, retail and manufacturing.

President Donald Trump returned to the White House in January determined to overturn decades of American policy and build a tariff wall around a U.S. economy that used to be pretty much wide open to foreign products.

A trio of judges at the Manhattan-based trade court ruled that Trump’s use of emergency law to impose the tariffs was not legal. The ruling stated the power to regulate trade and commerce lay with Congress and that simply being President did not grant him power to supersede in the name of national security, which Trump had claimed.

Most of President Trump’s tariffs were halted late Wednesday by a U.S. trade court in a sharp rebuke of the president’s signature trade war policy.

An editorial published Sunday by Omaha World Herald, a Nebraska-based newspaper, argued that President Donald Trump's tariffs hurt the state's economy, saying that Nebraska’s entrepreneurs and shoppers thrive without trade obstacles imposed by the government.

A federal court in New York handed President Donald Trump a big setback Wednesday, blocking his audacious plan to impose massive taxes on imports from almost every country in the world

A legal battle over tariffs threatens Donald Trump's control over his favourite economic weapon. On Thursday evening, the President of the United States once again criticized lower court judges who ruled against him,

A US trade court has rebuked Donald Trump's reciprocal tariffs strategy, deeming his broad tariffs imposed under the International Emergency Economic Powers Act as an overreach of presidential power.

Former Chair of the Council of Economic Advisers Jared Bernstein joins MSNBC’s Ali Velshi to discuss Donald Trump’s “unconstitutional” tariff policies and why tariffs should be used like a “scalpel” and not,