What type of government whose leaders try to control what media like books and radios could say?

The type of government whose leaders try to control what media like books and radios could say is the Federal communication commission

Explanation:

The Federal Communications Commission (FCC) is an independent agency of the United States government that regulates communications by radio, television, wire, satellite, and cable across the United State

answer; the president uses mass media to gain support for policies;

answer; /// decreasing responsiveness to a stimulus to which one is repeatedly exposed;