in kyiv a day after meeting with president biden, volodymyr zelenskyy shook hands with the delegation of house of representatives, including mike mccallhat chairs of foreign affairs committee. he said their visit is more important evidence that the united states supports ukraine. joining me now, the deputy mayor for lviv in western ukraine. thank you for joining us. first, your reaction to the words we heard from president biden today in poland saying the united states would not tire in its support of ukraine, in the significant speech he made one day after the surprise visit to kyiv? >> it was, indeed, a very inspiring speech, historic. it's a huge impetus and support for all the ukrainian defenders, and all ukrainians inside or outside ukraine. but most importantly, for the rest of the world, f our allies as well, that the united states is with ukraine, and it will stay with ukraine until the end. also, one important comment that he made is the war crimes, the acknowledgment of the war crimes that russia is committing. we heard that also from vice president kamala harris during the security conference. why this is significant is tha