"...In 1941, President FDR explained why he chose to fund Social Security through a payroll tax in as follows:
“We put those payroll contributions there so as to give the contributors a legal, moral, and political right to collect their pensions and their unemployment benefits. With those taxes in there, no damn politician can ever scrap my social security program”
For more than seven decades, FDR’s strategy has proven effective. Talk to someone in or near retirement – even people who consider themselves small government conservatives – and you will often hear them state that they have a right to their Social Security benefit because they paid for it over their working life..."
Read more at forbes.com