What is an example of increased power in the federal government in during the civil war

During the Civil War , federal powers expand to include an income tax and a national currency.

the u.s. department of labor is a cabinet-level federal agency that supports the american labor force. it has three overall functions. first, it protects the rights of workers and retirees. second, it provides job training. third, it provides statistics related to working, prices, and income.