大統領 だいとうりょう首席 しゅせき補佐 ほさ かんであれば
daitōryōshuseki ho sakandeareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of 大統領首席補佐官

1. If the Chief of Staff to the President; Were the Chief of Staff to the President

Ba Conditional