Advocates say the Social Security Fairness Act rights a decades-old disparity, though it will also put strain on Social Security Trust Funds, which face a looming insolvency crisis.

President Joe Biden signed a measure into law on Sunday that boosts Social Security retirement payments to some retirees who draw public pensions, such as former police officers and firefighters, in what the White House described as the first expansion of such benefits in 20 years.

For decades, Americans have seen lower Social Security checks if they fall into the circumstances under the WEP and GPO.