What role do government agencies play in a mixed market economy?

The role of the government in a mixed market economy would be to regulate the roles and aspects of distribution and production. Basically, they are responsible for using laws to control businesses and monopolies and can even break them up. This helps to protect producers and consumers.

the president has the power to appoint federal judges, ambassadors, and other "principal officers” of the united states, subject to senate confirmation of such appointments.

its kind of blury sorry