In response to the escalating threat, President Trump confirmed Monday that the U.S. will send additional Patriot air defense missiles to Ukraine. He noted that the European Union would finance the purchase of what he described as "various pieces of very sophisticated" U.S. weaponry.

A White House official clarified to CNN that when the president referred to ‘secondary tariffs,’ he meant 100% tariffs on Russia and secondary sanctions on other countries that buy Russian oil,” per CNN’s Kevin Liptak.