Populist movements that campaign against corruption tend to weaken independent anti-corruption enforcement after taking power

What's this about?

People disagree about whether anti-corruption groups lose power when populist leaders gain control.

Populist leaders claim they speak for ordinary people against a rich or corrupt ruling group.

What supporters say

• These leaders may attack watchdogs as part of the old ruling group, then try to control them.

What critics say

• Populist movements differ greatly, so one broad rule may not fit every country or leader.

How to read this

The number of points on each side does not show who is right; strong proof matters more.

The bottom line

The claim shows a real risk, especially where public bodies already have weak safeguards.

But current proof does not show that populist rule always weakens free anti-corruption groups.

The claim is that populist movements that campaign against corruption may weaken independent anti-corruption bodies after taking power. The available evidence makes this a plausible risk, but not a proven general rule.

The case for

Populist movements often present politics as a struggle between “the people” and a corrupt or discredited elite. That message can put independent institutions in an awkward position. Anti-corruption agencies, courts and other oversight bodies may be portrayed as part of the old establishment rather than as neutral safeguards. Once a populist government takes office, it may therefore face pressure to bring those bodies under executive control. The mechanism is credible: anti-elite rhetoric can weaken respect for institutions that stand between the government and its supporters. 1

Research on anti-corruption enforcement identifies political interference, administrative restrictions and poor cooperation among agencies as recurring barriers to effective oversight. Studies of Nigeria’s anti-corruption institutions, for example, found weak trust and cooperation between agencies, alongside political and administrative constraints. Those findings show how enforcement systems can become vulnerable to pressure, although they do not prove that populism caused the problems.

Comparative studies also suggest that formal anti-corruption bodies can be turned into politically controlled instruments when legal protections and other safeguards are weak. This supports a narrower conclusion: where institutions are already fragile, populist governments may have both the incentive and the opportunity to reduce their independence. But the evidence is mainly about institutional vulnerability, not a measured, across-the-board decline caused by populist rule.

The case against

The main objection is that populism covers too many different movements, ideologies and political alliances to support a universal prediction. Some populist governments may attack oversight bodies, while others may preserve or even strengthen them. Anti-corruption campaigning alone cannot show that every, or even most, populist movements will later weaken independent enforcement. 2

There is also a serious problem of attribution. Enforcement agencies may be weakened by poor laws, inadequate funding, rivalry between agencies or general executive dominance. Those conditions can exist before a populist government takes power and can also occur under non-populist governments. The Nigeria-focused research identifies institutional and administrative problems, but does not show that a populist movement created them or that they followed a populist victory.

Likewise, legal studies underline the importance of institutional design and independence, but do not isolate populist campaigning as the cause of declining enforcement. The available research contains no comparative, long-term study that measures the independence of anti-corruption bodies before and after populist governments take office, while comparing them with similar non-populist governments.

The evidence also concerns autonomy, coordination and administrative capacity more than corruption levels themselves. It does not demonstrate that populist incumbency produces a measurable rise in corruption. Nor does it settle whether institutional erosion comes from populist ideology, incentives shared by many executives, pre-existing weakness, or a combination of those factors.

The bottom line

The evidence favours a conditional version of the claim, but only moderately. Populist anti-corruption politics can create risks for independent enforcement, especially where institutions already lack strong legal safeguards and are vulnerable to executive pressure. That mechanism is reasonably well supported, and confidence is high that institutional design and autonomy matter.

But the evidence does not establish that populist movements generally weaken independent anti-corruption enforcement after taking power. The strongest weakness is attribution: the available case studies and legal analyses do not show that populism itself caused institutional decline. The claim is therefore best treated as a plausible, context-dependent warning—not as a settled general tendency.