Possible Clues:

• Merrick Garland was Obama's
• One assigned to a job or role
• Official answer -- pages of intricate nonsense initially gaining little support
• Reason ecclesiastical leader in primate is the chosen one
• One put in post
• The Chosen One?
• One assigned to post
• Job-holder has to copy across fifth suggestion?
• The Chosen One produced opening preamble - what's the objective taking ecstasy in A&E?
• Chosen one