を唱えた

voiced

→ を
phrase Rare #29,302
voiced A formal expression used after a noun to mean that someone voiced an objection, opposition, opinion, or proposal. The dictionary form is を唱える.
JA: 彼はその計画に反対を唱えた。
EN: He voiced his opposition to the plan.

彼は減税を唱えた

He advocated tax cuts.

その提案口をそろえて反対を唱えた

They unanimously opposed the proposal.

彼はその決定不服を唱えた

He objected to the decision.