President Trump expressed uncertainty that NATO would come to the United States’ defense if the country were attacked, though the alliance did just that after Sept. 11.

The president signaled that he would consider abandoning a key part of the NATO security pact if members don’t spend more on defense.

President Donald Trump and Ukrainian President Volodymyr Zelensky are holding a joint press conference at the White House. The press conference is scheduled to begin at 1 p.m. Zelensky's first trip to the United States during Trump's second term comes as Trump has made overtures to Russia to end the three-year Russia-Ukraine War.

White House press secretary Karoline Leavitt will hold a press conference Wednesday afternoon, just a day after President Trump gave his first address to a joint session of Congress since returning to office in January.