The meeting with Zelenskyy, which is planned for Wednesday but not finalized, would be equally as testy. Kyiv hopes NATO would provide Ukraine with a speedy path into the alliance, even though Biden and other member nations oppose the idea of doing that soon. One reason is that making Ukraine an ally now would essentially put NATO at war with Russia, which continues its nine-year invasion.

Biden will look to convince Zelenskyy that removing a series of bureaucratic hurdles and reforms, in addition to a large security commitment by the U.S. and some NATO allies, was the most Kyiv could get in Vilnius this year.

Ukraine has not confirmed any plans for Zelenskyy to attend the summit.

It’s unclear if either discussion will produce a breakthrough. But holding the meetings shows Biden wants to invest himself personally — and the power of the presidency — in both relationships.

The National Security Council didn’t immediately respond to a request for comment.