Getty Images; Jenny Chang-RodriguezTrump wants to cut taxes on Social Security benefits, impacting current and future beneficiaries.Experts warn these cuts could deplete the Social Security fund three years earlier than expected.Low-income baby boomers and younger generations would be most hurt by Trump's proposal.Donald Trump plans to make changes to America's Social Security system with his return to the White House in January.The president-elect promised on the campaign trail to cut taxes on Social Security benefits in his second term."People on Social Security are being killed, and one of the things I'm doing is no tax for seniors on Social Security, and I'll get it done quickly," Trump told "Fox & Friends" in August.For some baby boomers, lower Social Security taxes could mean larger monthly checks in the short-term.