Swiss President Karin Keller-Sutter left Washington empty-handed on Wednesday after a hastily arranged trip to avert a crippling 39% tariff on the country's exports to the United States, its biggest market,

After weeks of working with U.S. officials to try to avoid hefty tariffs on Swiss goods, negotiators from Switzerland got assurances that a deal was all but done. Swiss businesses vowed to pour tens of billions in investment in the United States in the coming years.

The Swiss president is heading to the U.S. in a last-ditch effort to head off punishing tariffs that threaten to cripple key sectors of the country’s export-reliant economy. President Trump’s recent decision to impose a 39% levy—one of the highest in the world—stunned the Alpine nation and upended months of negotiations in which Swiss officials believed they were on the verge of securing a favorable deal.