It's difficult to discern the short-term political gain for Republicans to try to dismantle Social Security now. So the payoff must be more psychological or intellectual. Now that they indisputably control all three branches of government, Republicans finally have the opportunity to slay some of the liberal demons that have been bedeviling them for so long.
For 70 years, conservatives have been telling us that the American economy—whether it's in recession or whether it's booming—is laboring under the shackles of the burdensome taxation and misguided regulation placed upon it by FDR and his successors. Somehow, stocks would do better if the SEC were weaker and we'd all be wealthier if seniors weren't guaranteed a minimum income, funded through payroll taxes. But America's economic mastery since 1945 has served as an ongoing and constant refutation of their most dearly held beliefs. It still does today. As George Melloan concedes, "The New Deal basically expanded the reach of government, and things worked out OK." Actually, they worked out great. Some people still can't get over it.