The US federal government, broadly speaking, does not invest money. It is an insignificant part of the budget. For example, infrastructure is ~2% of the budget

The US federal government, broadly speaking, does not invest money. It is an insignificant part of the budget. For example, infrastructure is ~2% of the budget, and that includes both maintenance and waste. The vast majority of federal tax funds are spent on non-investment welfare consumption of one form or another.