In the USA, the Social Security tax was designed like a savings account, for all workers; on the books. It is combination of equal parts worker and employer contribution; 6.2% each. This SS tax is above and beyond the income tax, and was designed to be like a personal retirement fund for elderly retirees. A 40 year work career, can add up to almost a livable wage at retirement based on where you retire; Florida.
The SS program was revised under President Reagan, and with the help of several future Presidents, it created a large surplus in the $trillions. This surplus was still growing and was projected to meets the future needs of the elderly, until 2050 or so.
What happened is the boneheads in Washington; stupid and corrupt leaders, decided to raid that SS surplus; slush fund, and thereby jeopardized the future for this retirement program. The Government does pay interest on this "loan", like the rest of the National Debt. However, the interest alone, on the surplus, is not enough compared to having the entire surplus back in their own pool. I would create a law that says the US Government has to pay back the SS, stolen funds, in full, before it fund anything else, so the fund is self standing and back in the black. We can take money from other programs since this is not a loan or a windfall, but it is returning stolen property.
I would also clean up SS and reverse the trend of the Left, which is to allow able bodied young people to collect social security. If you are a drunk or drug addict you get social security, to buy drugs and booze; electronic debit card. This further borrowing from the elderly fund, puts all the elderly, who paid into the fund, at risk. The young people, now on SS, would need to migrate to other programs, just not SS. Young people should be contributing to their own future; old age, and not be a parasite living off the artheritic backs of the present day elderly.
I would ever tax campaign contributions; treat each campaign as a corporation, and give the revenue to the SS fund. It was campaign donations and politicians who ripped off the funds, so it is only fitting we get the money back, with interest.
We all know the Left wants Socialism, so they will do what it takes to upset any self sufficiency programs, such as SS. If the program was to collapse, they can use Socialism as an excuse to take it over. As long as it is sound, this is harder to sell. We need to reverse the steps taken, designed to collapse self standing programs. Taxing campaign funds has the spin off advantage of using the IRS to audit, even dark money. This may have prevented the original rip off and five us early warning of all adverse government actions, so they are more transparent and accountable.