To actively participate in politics to try to affect the result of an election, usually by supporting a specific person or policy.
The mayor was accused of using public funds to electioneer for his re-election.
市長は再選挙のための選挙活動のために公的な資金を利用した罪に問われました。
To try to get public support for a political cause or idea.
The environmental group has been electioneering for stricter regulations on pollution.
環境保護団体は、汚染に対するより厳格な規制を求める選挙運動を行っています。