President Donald Trump's special envoy tasked with negotiating an end to Russia's war in Ukraine, as well as his son-in-law, faced a daunting task in Moscow on Tuesday. Nearly four years after Russian President Vladimir Putin's full-scale invasion of his smaller neighbor, Steve Witkoff and Jared Kushner are grappling with an empowered Russia, plus Ukraine on the back foot both on and off the battlefield. Kyiv's troops, facing a dire manpower crisis, cling onto strategic hubs, and a major corruption scandal has shaken President Volodymyr Zelenskyy's government and seen his top negotiator removed...