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.

More uncertainty surrounds President Donald Trump’s tariffs as a new week begins. Meanwhile, the White House is ramping up its halting efforts to secure ceasefires in Gaza and Ukraine. Follow for live updates on the administration.

A US trade court ruling against Trump's reciprocal tariffs could force the administration to refund billions in collected import duties. The court determined that the International Emergency Economic Powers Act (IEEPA) did not authorize the tariffs,

Federal court determined that President Trump doesn't have the authority to unilaterally impose tariffs, dealing a sweeping blow to his main weapon in his trade war.

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.

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

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.

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.

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

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,