By Bill Clark and Thomas McKinless

Arizona Senate hopeful Rep. Martha McSally defended her record on health care and the protection of pre-existing conditions at a campaign event Wednesday afternoon in Avondale, Ariz. “You know my heart, this is personal to a lot of people,” McSally said. “And we need a different policy model that brings down the cost, that provides more choice and allows people to get health insurance for their pre-existing conditions.” For more on the pre-existing conditions debate on the campaign trail, our health reporter Mary Ellen McIntire explains what Democrats and Republicans are worked up about.