The Supreme Court agreed Friday to wade into a fight over Congress’ ability to delegate power to federal agencies — opening the next chapter in a decadeslong effort by conservatives and business interests to reduce the power of the federal government.

The Supreme Court announced Friday it will hear a case that could deliver another blow to federal agencies’ powers. The justices agreed to take up the government’s appeal of a decision invalidating the Universal Service Fund (USF),

The Supreme Court could further weaken the power of federal agencies by agreeing to hear a dispute over a Federal Communications Commission program that requires companies to subsidize telecommunications services in under-served areas.

The justices have in the last four years significantly cut back the authority of EPA and other federal regulators.