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

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Oregon is still using paper applications to enroll people through the Affordable Care Act. iStockphoto hide caption

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Small employers can still enroll in Affordable Care Act coverage through insurers or brokers, but not through the online exchanges. iStockphoto hide caption

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From left, Garrett Berntsen, Jennifer Majer and William Shields compare notes at The Johns Hopkins University School of Advanced International Studies in Washington, D.C. Twenty-somethings have new choices under Obamacare. Heather Rousseau/NPR hide caption

itoggle caption Heather Rousseau/NPR

Mounting medical debt and struggles with insurers led Shelley Toreson to drop her health insurance. She now pays discounted rates upfront for her medical needs. Pauline Bartolone/Capital Public Radio hide caption

itoggle caption Pauline Bartolone/Capital Public Radio

Sen. Amy Klobuchar, a Minnesota Democrat, was joined by Utah Republican Sen. Orrin Hatch in taking steps to try to stop an Obamacare medical device tax. Jim Mone/AP hide caption

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House Budget Committee Chairman Rep. Paul Ryan, R-Wis., holds up a copy of the 2014 Budget Resolution as he speaks during a news conference on Capitol Hill in Washington, Tuesday, March 12, 2013. Carolyn Kaster/AP hide caption

itoggle caption Carolyn Kaster/AP