Ukrainian President Volodymyr Zelensky meets Donald Trump at the White House Friday to push the US leader for long-range Tomahawk missiles that can strike deep inside Russia.
The meeting comes a day after Trump threw Zelensky a curveball by announcing a fresh summit with Russian President Vladimir Putin.
Trump also cast doubt on whether he would grant Ukraine's wish for the powerful Tomahawk cruise missiles, saying Washington could not "deplete" its own supplies.
Ukraine has been lobbying Washington for Tomahawks for weeks, arguing that they could help put pressure on Russia to end its brutal three-and-a-half year invasion.
But on the eve of Zelensky's visit, Putin warned Trump in a call against delivering the weapons, saying it could escalate the war and jeopardize peace talks.
Trump