Fact Check: Does Ranked-Choice Voting Actually Reduce Negative Campaigning?

The American political landscape in 2026 is defined by intense polarization, prompting a surge of interest in structural democratic reforms. At the forefront of this movement is ranked-choice voting (RCV), a system that allows voters to rank candidates by preference rather than selecting just one.[6]

As dozens of municipalities and several states prepare to use RCV in upcoming elections, a central promise has emerged from its proponents: the system fundamentally alters campaign incentives, forcing candidates to be more civil. The logic is straightforward—if a politician needs the second-choice votes of their opponent's supporters to win, they cannot afford to alienate them with toxic attack ads.[2][6]

But does this theoretical mechanism actually translate to reality? To answer this, election scientists and data analysts have spent the last decade compiling an extensive body of evidence, analyzing voter surveys, campaign spending, and debate transcripts across jurisdictions that have made the switch.[1][6]

The strongest evidence supporting the "civility claim" comes from municipal elections. According to comprehensive surveys conducted by the MIT Election Data and Science Lab, voters in cities utilizing RCV consistently report experiencing less negative campaigning compared to voters in demographically similar cities using traditional plurality voting.[1]

In these local races, candidates frequently engage in cross-endorsements, publicly asking voters to rank them first and a specific rival second. This collaborative campaigning style is virtually nonexistent in traditional winner-take-all elections, where any support for an opponent is a zero-sum loss.[2][3]

However, researchers at the National Bureau of Economic Research caution that this pacifying effect is not universal. When analyzing highly partisan, high-stakes federal elections, the data becomes significantly murkier. In races where ideological divides are stark, candidates often calculate that mobilizing their base through negative attacks is still more effective than courting the second-choice votes of their ideological opposites.[4]

Furthermore, the influx of outside spending by political action committees complicates the civility metric. Even if candidates themselves refrain from direct attacks to preserve their second-choice viability, independent expenditure groups frequently step in to run negative advertisements, effectively laundering the toxicity away from the candidate's official campaign.[3][4]

Beyond campaign tone, the evidence pack surrounding RCV must address the critical question of voter comprehension and satisfaction. A persistent argument against the system is that it is too complex, potentially confusing voters and leading to discarded ballots.[3][6]

Data from the Bipartisan Policy Center largely refutes the notion of widespread voter confusion. Across multiple election cycles, over 80 percent of voters in RCV jurisdictions report that the ballot was easy to understand. The rate of spoiled ballots—where a voter makes an error that invalidates their vote—is statistically indistinguishable from traditional elections after the first cycle of implementation.[3]

Yet, a related phenomenon known as "ballot exhaustion" remains a genuine concern. An exhausted ballot occurs when a voter ranks only one or two candidates, and all of their choices are eliminated in early rounds of tabulation. If the election goes to a final round, that voter's ballot no longer factors into the outcome.[1][4]

Studies show that ballot exhaustion rates can range from 5 to 15 percent in highly competitive races with large fields of candidates. While this does not mean the system is broken—those voters simply chose not to express a preference among the remaining candidates—it does mean that the final winner sometimes secures a majority of the remaining ballots, rather than a majority of all ballots originally cast.[1][3]

Another major claim tested by researchers is RCV's ability to eliminate the "spoiler effect," where a third-party candidate siphons votes from an ideologically similar major-party candidate, inadvertently handing victory to their mutual opponent.[5][6]

On this front, the evidence is overwhelmingly positive. Pew Research Center analysis confirms that RCV effectively neutralizes the spoiler dynamic. Voters are empowered to rank their true favorite first, knowing that if that candidate lacks broad support, their vote will seamlessly transfer to a more viable backup choice.[5]

This structural safety net has demonstrably increased the vote share for independent and third-party candidates in early rounds, as voters no longer fear wasting their ballot. However, it has rarely resulted in those candidates actually winning major offices, as they still struggle to build the broad coalitions required to survive the final rounds of tabulation.[4][5]

Ultimately, the accumulated data suggests that ranked-choice voting is neither the utopian cure-all promised by its most fervent advocates nor the confusing disaster warned of by its detractors. It is a mechanical adjustment to electoral incentives that yields measurable, if sometimes modest, improvements.[3][6]

The evidence strongly supports its ability to eliminate the spoiler effect and foster more collaborative campaigning in local elections. As the system scales to more polarized national contests, its capacity to permanently alter the tone of American politics remains an open, actively tested question.[1][4][6]