As President Barack Obama enters his final months in the White House, he is clearly looking to burnish his legacy. But there is no sign he will be able to tackle one of the largest financial issues facing the country: shoring up Social Security.

“We’ve had eight years of lost opportunity to make Social Security structurally sound,” says Maya MacGuineas, president of the Committee for a Responsible Federal Budget (CRFB), a nonpartisan nonprofit dedicated to educating the public on fiscal issues. And even after Obama leaves office, the funding problem will likely continue–neither of the presidential candidates has offered a detailed Social Security reform plan. The topic has been barely discussed this election cycle.