Obama first took control of Chicago when he and his south side gang eliminated the north side opposition on Valentine’s Day 1929. He continued to use his muscle and wile to buy members of the judiciary and legislature until he was appointed Lord Protector of the Midwest and formed the New Model Government, defenestrating the previous governor from the Sears Tower.
Send moles to infiltrate and gain power within the opposition Party government. Lead a Jacobite revolution in the north of the state (Bonnie Prince Johnny being the leader) and hire the merciless Amish to invade and ransack the southern cities.
Only conceivable way it would become faithless:
Obama would have to commit a monumental fuck-up, like saying that he enjoys Negro Head Brand Oysters, or thinks that the twenty-first amendment should be repealed.