House Republicans are cooking up a bill they hope will be a tough vote for Democrats.
Members of the GOP Doctors Caucus urged the administration to keep Medicare Advantage rates flat in 2015.
A wide-ranging coalition called for overhauling Medicare's physician payment system amid signs that lawmakers will pursue another patch.
Sebelius is set to testify on the administration's budget, following the latest ObamaCare delay.
The results come amid a full-on public relations blitz to attract enrollees.
The site has yet to enroll even one person despite spending $304 million in federal funds.
Gary Cohen, charged with implementing ObamaCare, is leaving voluntarily.
The president will participate in a town hall Thursday morning at the Newseum.
The law's "reinsurance fees" have come under fire from labor and business groups.
The White House took the rare step of naming more than a dozen Democrats it worked “in close consultation” with ahead of a Wednesday announcement about changes to the Affordable Care Act.