Immediately following the US-Russia summit is the US-Ukraine summit. We talked on Saturday about the recent signs of thawing in US-Russia relations, but further progress will depend on how Trump coordinates with Zelensky and allies. Today, leaders from European countries are almost all gathered in Washington for two main reasons: first, there is concern about a repeat of the scene in February when Zelensky left the White House 'in a huff'; more crucially, the Russia-Ukraine conflict seems to have reached a critical final juncture.