Argentina's foreign minister will meet U.S. Secretary of State Marco Rubio on Tuesday in a trip aimed at laying the initial groundwork for a trade deal between the two nations, even as President Donald Trump prepares to impose sweeping tariffs. Gerardo Werthein's visit to Washington comes a day before Trump is expected to launch reciprocal tariffs on April 2, dubbed "Liberation Day" by the U.S. president, that will target all countries and potentially shake up global trade.