I would remove the income cap on the Social Security withholding tax, (6.2%/12.4%)and make it unlimited, as it already is with the Medicare tax,(1.45%/2.9%).
Also, just go and show up at any nursing home and take the tour, and you will see many, many people who just stare at the ceiling all day who can't even control their own drool, and are fed artificially though tubes punched through their stomachs. Why? Because "I wants everything done for mama!" is the usual reason. And we spend billions of healthcare dollars on these "people".
If we just made tube feedings illegal for the demented, we would have more than enough savings to give everybody basic health coverage.