It's been a year since Putin launched his full-scale invasion of Ukraine. Few people have had a closer view of the realities of that war than Sergiy Leshchenko, an advisor to President Volodymyr Zelenskyy’s chief-of-staff and an alumnus of the Draper Hills Summer Fellows program at the Freeman Spogli Institute for International Studies. He joins Michael McFaul on World Class to report on what a year of brutal fighting looks like from inside Ukraine, and shares what progress he hopes to see in the coming months as Ukraine continues it's fight to remain a sovereign, democratic state.