Over the objections of members of his party, the president had agreed to those changes as part of an unsuccessful effort to strike a debt deal this summer with House Speaker John A. Boehner (R-Ohio). But Obama’s aides say the plan being released Monday would not represent that sort of compromise.

People close to the White House say Obama’s advisers have been debating whether the plan should include the changes to the Medicare eligibility age or a reduction in Social Security benefits.

Obama is unlikely to include the Social Security proposal, the sources say, and an administration official noted that Social Security is not contributing to the nation’s immediate deficit problem. The sources were less clear about whether Obama would recommend the change in the Medicare eligibility age.