Except that Lincoln was the second greatest president (after Washington), who freed the slaves, saved the union, had a strong character, personal drive to do what is right at any cost and who is remembered with admiration by all the world.
Other than that, Obama is just like Lincoln.
Second greatest President? Lincoln? Not even close! Ronaldus Magnus is surely second, Jefferson (LA Purchase) third, TR (trustbuster)fourth, Jackson (paid off ALL debt)fifth.