Sounds like he was a Welfare Scammer. Would not be surprising because of his background.
According to a former IRS Examiner:
“It appears Barry fled New York to Chicago using his new identity to get a job . He likely ordered a fake diploma to bolster his new identity as “Obama”. Fake Diploma’s were very big in the 80’s and diploma mills were even being used by federal workers to get promotions. There is evidence his alleged attendance at Columbia was faked (Barry never attended Columbia) and Barry lied his way into Harvard (he had no transcripts to get in)... Including telling the Saudi royal family he was fighting in Afghanistan with the Muslim Jihad against the Russians, so they would help him get into a law school.”