NATO Secretary General Mark Rutte and European Commission President Ursula von der Leyen exited their vehicles at the South Portico. Also set to be in attendance today are the leaders of Germany, Finland, France, Italy and the United Kingdom.

Time is ticking on President Donald Trump's two-week timeline for a face-to-face meeting between Russian President Vladimir Putin and Ukrainian President Volodymyr Zelenskyy.

President Donald Trump on Tuesday offered his assurances that U.S. troops would not be sent to help defend Ukraine against Russia after seeming to leave open the possibility the day before.

Any effort to help enforce a possible peace deal between Russia and Ukraine will not involve American boots on the ground, Pres. Trump said.