The official said that the White House did not intend to change its messaging and that Sebelius simply meant to echo the president, who has acknowledged that the public option is a tough sell in the Senate and is, at the same time, a must-pass for House Democrats, and is not, in the president’s view, the most important element of the reform package.

A second official, Linda Douglass, director of health reform communications for the administration, said that President Obama believed that a public option was the best way to reduce costs and promote competition among insurance companies, that he had not backed away from that belief, and that he still wanted to see a public option in the final bill.

“Nothing has changed.,” she said. “The President has always said that what is essential that health insurance reform lower costs, ensure that there are affordable options for all Americans and increase choice and competition in the health insurance market. He believes that the public option is the best way to achieve these goals.”