How does a government’s unpopularity affect a prime minister’s authority?

A government’s unpopularity can significantly diminish a prime minister’s authority, often leading to a decay in their power and prestige. While prime ministers are typically strongest immediately following an election, their influence may wane if the government encounters major problems or becomes deeply unpopular.1

In systems where the prime minister holds considerable power, such as the Westminster model, widespread public dissatisfaction can create political conditions that restrict their ability to command the legislature or maintain control over their cabinet. For example, public backlash against specific policies—such as the introduction of an unpopular tax—can generate opposition from within the prime minister’s own party, potentially inducing their resignation.12

Furthermore, political leaders must operate within the limits set by public opinion, as ignoring the potential consequences of "latent" public opinion—the public's probable future reaction to current actions—risks electoral defeat. When a government is perceived as unpopular, a prime minister may find it increasingly difficult to implement their agenda, as their capacity to influence policy and manage government departments is often tied to their political standing and the support of their parliamentary majority.312