Opinion: These GOP candidates are key to Zelensky's fate

Editor's Note: Lanhee J. Chen, PhD, is a regular contributor to CNN Opinion and the David and Diane Steffy Fellow in American Public Policy Studies at the Hoover Institution. He was a candidate for California State Controller in 2022. Chen has played senior roles in both Republican and Democratic presidential administrations and been an adviser to four presidential campaigns, including as policy director of Romney-Ryan 2012. The views expressed in this commentary are his own. View more opinion on CNN. CNN — While Ukrainian President Volodymyr Zelensky was visiting Washington this week, nearly 30 Republican lawmakers sent a letter to…