The early skirmishing — essentially amounting to friendly fire — is perhaps the clearest indication yet of the uphill battle President Obama faces in delivering on his promise to make affordable, high-quality care available to every American…

Last week, two top administration officials suggested that Obama is open to compromise on the public plan, comments that set off alarm bells in some corners of his party.

“That’s what got the left nervous. I took that as a signal to Senator Grassley” that Obama is willing to negotiate around an issue Grassley has vehemently opposed, said Len Nichols, health policy director at the New America Foundation, a nonprofit think tank, referring to Sen. Charles E. Grassley (R-Iowa). “It was the first time the president indicated he could live without it.”