Swiss President Karin Keller-Sutter arrived in Washington to make a last-minute bid for a deal to lower the 39% tariff imposed last week by Donald Trump.

Swiss President Karin Keller-Sutter and Business Minister Guy Parmelin flew to Washington on Tuesday, the government said, in a last-ditch effort to avoid the 39% tariffs announced by President Donald Trump on exports to the United States.

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.