Linda Door protested outside the U.S. Supreme Court as it began hearing arguments on the constitutionality of the Affordable Care Act in March 2012. Carolyn Kaster/AP hide caption

itoggle caption Carolyn Kaster/AP

Democratic Rep. Henry Waxman of California stands in his Capitol Hill office beside a wall displaying his legislative accomplishments. Waxman, 74, said Thursday that he would retire after 40 years in the House of Representatives. J. Scott Applewhite/AP hide caption

itoggle caption J. Scott Applewhite/AP

Sen. Tom Coburn, R-Okla., is one of the sponsors of a Republican proposal to rewrite the Affordable Care Act. Alex Wong/Getty Images hide caption

itoggle caption Alex Wong/Getty Images

UPS has told workers that it will no longer offer health coverage for spouses who have their own job-based insurance. Above, a UPS driver makes a delivery in North Andover, Mass. Elise Amendola/AP hide caption

itoggle caption Elise Amendola/AP

Insurers get paid more for older people under the Affordable Care Act, even if they're healthy. Tony Ding/AP hide caption

itoggle caption Tony Ding/AP

Cedric Anthony and Alysia Greer are two of the navigators working in Houston neighborhoods for United Labor Unions Local 100. Carrie Feibel hide caption

itoggle caption Carrie Feibel

John Martin, 24, was uninsured until a health care navigator told him he could get coverage through his parents' health plan. Jenny Gold hide caption

itoggle caption Jenny Gold

Insurers still charge copays for some contraceptives. Laura Garca/iStockphoto hide caption

itoggle caption Laura Garca/iStockphoto

Henry Ford Hospital treats Detroit residents. About 1 in 3 residents of that city is uninsured, and the hospital CEO hopes Medicaid expansion will increase the number of people with health insurance. Eric Whitney hide caption

itoggle caption Eric Whitney

Peter Lee, executive director of Covered California, unveils a marketing campaign for the exchange in Los Angeles late last year. Nick Ut/AP hide caption

itoggle caption Nick Ut/AP

SoloHealth owns 3,500 health screening kiosks like this one in San Francisco. In some states, the company sells customer contact information to insurers. April Dembosky hide caption

itoggle caption April Dembosky