Buffeted by a corruption scandal in his government, battlefield setbacks and another difficult winter looming as Russia continues to bombard Ukraine’s energy grid, Zelenskyy says Ukraine is now facing perhaps the most difficult choice in its history. Zelenskyy has not spoken with Trump since the plan became public this week, but has said he expects to talk to the Republican president in coming days. It’s likely to be another in a series of tough conversations the two leaders have had over the years. The first time they spoke, in 2019, Trump tried to pressure the then newly minted Ukrainian leader...