I think SSA screwed it up, regardless on presidents and Obama didn't change the SS law, nor is the congress too, but SSA has major problem - A LOT of bureaucracy.
You should get a lawyer to fight against SSA and if you have a strong ground so you can win in the court, so the judge force SSA to fix the flaws.
My SSI went messed up when GWB was president, but I fought so hard and got fixed it. The president hasn't anything to say about SS and the SS law hasn't change, except for health care reform (unrelated to deafness).