White House Press Secretary Karoline Leavitt joined ‘Fox & Friends’ to preview President Donald Trump’s joint address to Congress and the latest on the fallout with Zelenskyy after the president halted U.S. military aid. White House Press Secretary Karoline Leavitt joined ‘Fox & Friends’ to preview President Donald Trump’s joint address to Congress and the latest on the fallout with Zelenskyy after the president halted U.S. military aid.