A Congressional vote to repeal will never be taken. As always follow the money and power trail. Freebies, shifting of costs and new revenue streams for corporate medicine subsidized by the public. New taxes and regulatory power for Congress and the bureaucracy. The perfect dream for the denizen's of DC. The only debate between the political parties will be which one can make the doctor's appointment schedule flow on time.
Republicans don't understand the issues because they are on the wrong side. If a Republican were to run hard on the real issues, they would win by a landslide.