How much money has the US Government taken out of the Social Security Fund since the 1960s?

Since the 1960s, the U.S. government has borrowed approximately $2.9 trillion from the Social Security Trust Fund. These funds were used to cover budget deficits and other government expenditures, rather than being reserved solely for Social Security benefits. This borrowing has raised concerns about the long-term sustainability of the Social Security program and its ability to meet future obligations to retirees.