> According to the UST it's Social Security

Social security is reported as 21% of the total spending. It is also financed through a dedicated payroll tax. This means the federal government only acts as an income redistribution system where payroll taxes collected today are redistributed as pensions paid today.

So even though social security shows up so high, it just reflects the income redistribution scheme where the current workforce maintains retirement pensions of workers who retired.

The second largest expenditure is national defense at 15%.

Does that really align with occupying Gaza, invading Panama and occupying Greenland?

Let alone the loose threats to Canada.

Defense is the largest discretionary budget item. They can cut it by simply not including as much money in the budget for it.

Social Security is mandatory. They would have change the law cut it.