QUESTION...was obama a constitutional law professor ? If so... he doesn't remember very much

Obama, who has taught courses in constitutional law at the University of Chicago, has regularly referred to himself as "a constitutional law professor," most famously at a March 30, 2007, fundraiser when he said, "I was a constitutional law professor, which means unlike the current president I actually respect the Constitution." A spokesman for the Republican National Committee immediately took exception to Obama’s remarks, pointing out that Obama’s title at the University of Chicago was "senior lecturer" and not "professor."
Recently, Hillary Clinton’s campaign has picked up on this charge. In a March 27 conference call with reporters, Clinton spokesman Phil Singer claimed:

Singer (March 27):  Obama has often referred to himself as “a constitutional law professor” out on the campaign trail. He never held any such title. And I think anyone, if you ask anyone in academia the distinction between a professor who has tenure and an instructor that does not, you’ll find that there is … you’ll get quite an emotional response.