Upon first impression, it would seem they would have very similar views; there would be very little to debate about, if they agree on everything.
The reason I hesitate to commit to that opinion with absolute certainty, is because very few people seem to know what Obama's views actually are on the issues. Over the years, I've heard Al Sharpton debate the issues more often than Obama.
(and I did watch all 23 presidential debates; but Obama has just mastered that art of paraphrasing and avoiding the subject)