As House Republicans once again voted to repeal the Affordable Care Act this week, there was further evidence the controversial bill is contributing to the good health of some of the nation's major health insurers. Tuesday, the same day the House voted for repeal, Aetna reported adding more than 1 million new health insurance clients since last year, about half coming from the state health exchanges created by the health-care law. The Hartford-based insurer's 2014 earnings report said enrollment climbed 6 percent to 23.5 million people compared with 2013. That's about 1.1 million more people enrolled in Aetna plans. Some 560,000 came through the state exchanges Aetna participates in.