Tomorrow is what President Trump calls "Liberation Day" as he is expected to announce new tariffs. NBC News' Melanie Zanona reports more from Capitol Hill. Also, NBC News' Christine Romans joins Katy Tur to provide more insight on the markets and the potential economic impact.

Steel stocks fell sharply in pre-market trading Thursday after President Donald Trump's "Liberation Day" tariffs took effect, bringing in a 10% duty on all countries and additional reciprocal tariffs across 185 nations.

Donald Trump's 'Liberation Day' which is his tagline for his proposed reciprocal tariffs threatens to have a huge impact on the market.

Analysts at Wedbush Securities and Goldman Sachs as well as top economist Larry Summers predicted much economic pain ahead.

Some countries are promising swift countermeasures; others are asking for an opportunity to negotiate with the U.S. to avoid trade war.

All eyes are on the tariff announcements that U.S. President Donald Trump is expected to make at 4 p.m. EST on April 2, a day which he refers

While there are a few concerns that have investors' attention at the moment, including a forecasted contraction in first-quarter gross domestic product, along with the historic priciness of stocks, perhaps the prevailing issue for the stock market is President Donald Trump's tariff policy.

President Donald Trump’s much-anticipated “Liberation Day” has arrived, and the world seems to have gone into frenzy as markets brace for the

The iPhone maker faced its biggest one-day drop in five years as investors panicked over Donald Trump's heavy tariffs on its supply chain hubs.