They passed 33 various repeal O care bills in the House last session but it didnt actually repeal it nor did it win the election for Rs. I think the Senate and WH have to go along with any bills to get into law.
The way to really repeal O care or already passed O care spending would have been to win the 2012 election, I listen to Levin from time to time (like a few minutes last night) and I think he completely misses what O knows and uses, this is a continuing battle to win over voters, in his case in swing states(and get them to vote obviously).
Given that they completely blew the election the other way to win is to get voters to be more mad at O than they are mad at Rs. Turn public opinion so much against O that most polls show that Rs are trusted more on issues than trusting him (as they were in 2010) and o will cave,.