Big question hangs over NATO summit: Will Zelenskyy show up?

LONDON — The big question hanging over the high-profile NATO summit this week is whether Ukrainian President Volodymyr Zelenskyy will show up. 

The answer could either prove a galvanizing moment for the West in its support of Kyiv against Russia, or a humiliation. Though invited, Zelenskyy has yet to confirm his attendance, with his officials saying he is not yet clear about what was being promised at the summit.