Task: Translation
Input (Japanese): 彼は党に対しジェームズ・P・グレイ氏を副大統領候補に推薦するよう提案し、党がそれに従って、グレイ氏を副大統領候補に選んだ。
Output (English): He suggested the party nominate James P. Gray as his running mate, and they complied, choosing Gray as the vice presidential nominee.