Where is the baptism certificate? We do not see one because there was no baptism. That central part of Christianity was not required at Obama’s former church, the Trinity United Church of Christ, during the years Obama attended while he lived in Chicago (1988 – 2008). Obama has not attended another church with any frequency since then. In addition, there was no necessary renunciation of his prior faith, Islam, because in the Trinity United Church of Christ one can be both a Muslim and a member.