WASHINGTON — President-elect Barack Obama said Wednesday that overhauling Social Security and Medicare would be “a central part” of his administration’s efforts to contain federal spending, signaling for the first time that he would wade into the thorny politics of entitlement programs.jected a record $1.2 trillion budget deficit for this year even before the costs of the nearly $800 billion economic stimulus package being taken up by the House and the Senate, Mr. Obama stepped up his effort to reassure lawmakers and the financial markets that he plans a vigorous effort to keep the government’s finances from deteriorating further. Speaking at a news conference in Washington, he provided no details of his approach to rein in Social Security and Medicare, which are projected to consume a growing share of government spending as the baby boom generation ages into retirement over the next two decades. But he said he would have more to say about the issue when he unveiled a budget next month. Should he follow through with a serious effort to cut back the rates of growth of the two programs, he would be opening up a potentially risky battle that neither party has shown much stomach for. The programs have proved almost sacrosanct in political terms, even as they threaten to grow so large as to be unsustainable in the long run. President Bush failed in his effort to overhaul Social Security, and Medicare only grew larger during his administration with the addition of prescription drug coverage for retirees.Mr. Obama also promised a more intensive effort to weed inefficient and bloated programs out of the federal budget in the short run, creating a White House position to “scour this budget, line by line, eliminating what we don’t need, or what doesn’t work, and improving the things that do.” He named Nancy Killefer to the post, called chief performance officer. CONTINUE READING...