In at least a temporary victory for liberal groups, the president won't endorse the catfood commission recommendation to raise the full retirement age for Social Security in tomorrow's State of the Union address -- but administration officials caution he won't rule them out for good:

President Obama has decided not to endorse his deficit commission's recommendation to raise the retirement age, and otherwise reduce Social Security benefits, in Tuesday's State of the Union address, cheering liberals and drawing a stark line between the White House and key Republicans in Congress.

Over the weekend, the White House informed Democratic lawmakers and advocates for seniors that Obama will emphasize the need to reduce record deficits in the speech, but that he will not call for reducing spending on Social Security - the single largest federal program - as part of that effort.

Liberals, who have been alarmed by Obama's recent to shift to the center and his effort to court the nation's business community, applauded the decision, arguing that Social Security cuts are neither necessary to reduce current deficits nor a wise move politically. Polls show that large majorities of Americans in both parties - even in households that identify themselves as part of the tea party movement - oppose cuts to Social Security.

"Most of us would like to see the Democrats remain the strong defenders of Social Security, which they have to be if they want to win the next election," said Roger Hickey, co-director of the liberal Campaign for America's Future.

Administration officials said Obama is unlikely to specifically endorse any of the deficit commission's recommendations in the speech, but cautioned that he is unlikely to rule them off the table, either. On Social Security, for example, he is likely to urge lawmakers to work together to make the program solvent, without going into details, according to congressional sources.