Complex sentence: As stated in the journal, the reasoning behind this is so Glynn can one day be promoted to the position of Commissioner of Prisons and perhaps even become the state's first African-American Governor.
Split into simpler sentences: As stated in the journal, the reasoning behind this is so Glynn can one day be promoted to the position of Commissioner of Prisons. The journal also states that Glynn wishes to do this to one day become the state's first African-American Governor.