Check out this video–originally uploaded to youtube by barackobamadotcom in 2007:

https://hooktube.com/caeP33025UY

Also, check out this article "Obama's Lost Years" from the WSJ:

>Such caginess is grist for speculation. Some think his transcript, if released, would reveal Mr. Obama as a mediocre student who benefited from racial preference. Yet he later graduated from Harvard Law School magna cum laude, so he knows how to get good grades. Others speculate about ties to the Black Students Organization, though students active then don't seem to remember him. And on the far reaches of the Web can be found conspiracies about former Carter national security adviser Zbigniew Brzezinski, who became the candidate's "guru and controller" while at Columbia in the early 1980s. Mr. Brzezinski laughs, and tells us he doesn't "remember meeting him."

https://www.wsj.com/articles/SB122108881386721289