When Delores Rollins bought her dream home in the Hart Ranch subdivision off De Zavala Road seven years ago, she had no idea the purchase would draw her into the state and national political fray…   Rollins believes she has wound up on the short end of a long-term effort by Texas homebuilders to protect themselves from paying for their mistakes...  Hoagland said the broad reforms pushed through in Bush's first term — caps on punitive damages, restrictions on venue-shopping and limits on shared liability, among others — may have benefited the homebuilding industry…   ""How many times do they have to win?"" said James of the Consumers Union. ""I think the deal is that it's not about logic, it's not about justice, it's about muscle. And the business community has a ton of muscle, and they don't want to be liable for anything.""