I endorse
Definitions
To publicly or officially express support or approval for someone or something.
To sign a document, such as a check, to make it valid or to transfer ownership.
Examples
I endorse this candidate because of their commitment to community development.
I endorse the new company policy as it promotes a better work-life balance for all employees.
I endorse the author's latest book, as it provides a profound perspective on modern history.
Synonyms
I support I advocate I approve I champion I back I promote I recommend
Antonyms
I oppose I reject I condemn I denounce I criticize I veto I disapprove