From Federal News Network:
Congress — at least the House side of it — is closer than ever to giving the green light to repeal or reform WEP [Windfall Elimination Provision] and GPO [Government Pension Offset], the so-called “Evil Twins” that eat into, or eliminate, the Social Security benefits of hundreds of thousands of former government employees or their widows. ...
For decades, many whose Social Security benefits have been reduced by WEP or Offset have been pushing Congress to fix them. Backers of WEP and Offset say they prevent former feds under the CSRS retirement plan, and state and local government employees whose jobs were not covered by Social Security for most or all of their careers, from collecting higher benefits based on relatively short employment in a Social Security job. Backers of the laws say they prevent people from using what they call a “welfare tilt” in Social Security toward people with lower lifetime earnings, protecting the program from being ripped off by preventing “excessive” payments to government retirees/survivors who spent the minimal time paying into Social Security. Opponents say it was a cruel way to save money by denying some or all benefits to people who need it most, and that the former government people are the ones being ripped off when their benefits are reduced or simply wiped out. ...
John Hatton, staff vice president for policy and programs at NARFE [National Active and Retired Federal Employees association] said “While NARFE and organizations representing state and local retirees have built significant support for repeal of WEP and GPO over the years, securing floor voters in either chamber of Congress has remained out of reach, perhaps due to the likely costs of the repeal bills and projected solvency challenges for Social Security. But a recent rule change in the House of Representatives allows bills to bypass committee consideration if they receive 290 cosponsors. H.R. 82, the Social Security Fairness Act, which would repeal both WEP and GPO is up to 276 cosponsors, just 14 short of that mark. So we continue to push representatives to cosponsor the bill, and hope for some long-awaited progress on these issues.” …
In other words, it's extremely unlikely to happen in the House of Representatives. Also, although this article doesn't say so, it's out of the question in the current Senate.