Final answer:
Totalitarian regimes gain power through control and suppression of opposition, using tactics such as propaganda and mass surveillance. These regimes exert complete authority over all aspects of public and private life, suppressing individual freedom.
Step-by-step explanation:
Totalitarian regimes gain power in a government by consolidating control and eliminating opposition. They often use tactics such as propaganda, censorship, and mass surveillance to maintain control over the people. By exerting complete authority over all aspects of public and private life, including education, employment, and even personal beliefs, totalitarian regimes suppress individual freedom and establish a regime centered on the power of the dictator.