to get a no-fly zone. zelenskyy was warmly received even if there are differences on foreign policy. you could see the bipartisan standing ovation from lawmakers who gathered in person to watch his virtual address. right after the speech, president biden announced $800 million more in lethal aid for ukraine including armed drones and anti-tank systems and for the first time we heard president biden say this about vladimir putin. >> did you call him a war criminal. >> i think he is a war criminal. >> as for the diplomacy, there are the signs that it may be working. the talks discussing a realistic discretion, that is according to zelenskyy, while russian's foreign minister lavrov is saying publicly they hope for reaching a compromise. well what would that mean in the middle of war. we the experts here. i'm joined by ambassador john test, the former ambassador to ukraine and catty kay, from bbc