With another fight over the national debt brewing this summer, congressional Republicans are de-emphasizing their demand for politically painful cuts to retirement programs and focusing on a more popular prize: a thorough rewrite of the U.S. tax code.

Reining in spending on Social Security and Medicare remains an important policy goal for the GOP. But House leaders this past week launched a series of meetings aimed at persuading rank-and-file lawmakers that tax reform is both wise policy and good politics and should be their top priority heading into talks with Democrats over the need to raise the federal debt limit.

The move comes weeks after President Barack Obama responded to Republican demands to cut expensive federal retirement benefits by offering to shrink Social Security cost-of-living adjustments and raise Medicare premiums. The proposals, included in the president's budget request, outraged seniors, and some Republicans fear embracing them would be political suicide.