Details on the invitation to the Rev. Robert Certain to give the invocation at the Republican National Convention from an interview by K Kaufmann in the The Desert Sun:
QUESTION: How did the invitation to give the invocation at the convention come about?
ANSWER: I got an invitation from the convention team a couple weeks ago.
John [McCain] was raised as an Episcopalian; he made a statement he is still an Episcopalian though he attends a Baptist church. There is the POW tie; there was my service to the Ford family and my service on the (Department of Defense) Defense Health Board. So all of those things are out there.