What Are Superdelegates and How Do They Work?

Superdelegates are unpledged delegates to the Democratic National Convention who are free to support any presidential candidate they choose, regardless of state primary or caucus results. Unlike pledged delegates, who are bound to vote for the candidate chosen by primary voters in their state, superdelegates secure their votes automatically by virtue of their status as party leaders or elected officials.

While they were once a dominant force capable of shaping the presidential nominating process from day one, recent rule reforms have drastically curbed their influence. Understanding how these political insiders operate, why they were created, and how their roles have evolved is crucial to understanding the mechanics of modern American elections.

The Origin and Purpose of Superdelegates #

To understand why superdelegates exist, you have to look back at the chaotic primary seasons of the 1970s. Following the tumultuous 1968 Democratic National Convention in Chicago—where party insiders nominated Vice President Hubert Humphrey despite him not running in a single primary—the Democratic Party overhauled its rules. The resulting McGovern-Fraser Commission shifted power away from party bosses and directly into the hands of primary voters and caucus-goers.

While this reform democratized the process, it also led to nominations that party elites believed were disastrous for the general election. In 1972, grassroots activists propelled anti-war Senator George McGovern to the nomination, only for him to suffer a historic 49-state defeat against Richard Nixon. In 1976, Jimmy Carter, a political outsider, won the nomination and the presidency, but struggled immensely to work with his own party’s congressional leadership once in office.

In response to these perceived failures, the Democratic Party established the Hunt Commission in 1981. Led by North Carolina Governor James Hunt, the commission argued that the nominating process had shut out the very people who knew how to win elections and govern effectively.

The commission recommended the creation of “unpledged party leader and elected official” delegates—known informally as superdelegates. Their purpose was threefold:

  • To serve as a stabilizing force to prevent the nomination of an “un-electable” or extreme candidate.
  • To ensure that sitting governors, senators, and representatives had a voice in choosing the candidate they would have to run alongside in the general election.
  • To bring governing experience and institutional memory to the convention floor.

Superdelegates made their debut at the 1984 Democratic National Convention, where they helped secure the nomination for former Vice President Walter Mondale over the insurgent campaign of Senator Gary Hart.

Pledged vs. Unpledged: How Superdelegates Differ from Regular Delegates #

At a national convention, not all delegates are created equal. The Democratic nominating process is split into two distinct categories: pledged delegates and unpledged delegates (superdelegates).

Pledged Delegates #

Pledged delegates are awarded to candidates through the state-by-state primary and caucus system. They represent the “grassroots” will of the voters. Under Democratic Party rules, pledged delegates are awarded proportionally. If a candidate wins 60% of the vote in a state’s primary, they receive roughly 60% of that state’s pledged delegates. These delegates are legally or procedurally “pledged” to support their designated candidate on the first ballot at the national convention.

Unpledged Delegates (Superdelegates) #

Superdelegates do not have to run for their positions, nor are they bound by the voting results of any state. They are seated automatically at the convention. Historically, they could publicly endorse any candidate at any point in the cycle and change their minds as often as they liked before casting their official vote at the convention.

The superdelegate pool is comprised of roughly 700 to 750 individuals, representing about 15% of the total delegate count. They fall into four main categories:

  1. Elected Democratic Officials: All sitting Democratic U.S. Senators, Representatives, and state governors.
  2. Democratic National Committee (DNC) Members: The leadership and members of the national party committee from every state and territory.
  3. Distinguished Party Leaders: Former presidents, vice presidents, congressional leaders (such as former Speakers of the House), and former DNC chairs.
  4. Add-on Delegates: A small number of additional unpledged delegates selected by state parties to ensure diverse representation.

How Superdelegates Work Today: The 2018 reforms #

For decades, superdelegates cast their votes on the very first ballot of the Democratic National Convention, right alongside pledged delegates. However, the contentious 2016 primary between Hillary Clinton and Senator Bernie Sanders triggered a massive backlash against this system.

Before a single voter had cast a ballot in 2016, hundreds of superdelegates had already pledged their support to Hillary Clinton. Critics argued this created an “invisible primary” and an unfair hurdle for insurgent candidates, making the nomination look pre-determined. In response, the DNC created the Unity Reform Commission to overhaul the rules.

In August 2018, the DNC voted overwhelmingly to strip superdelegates of their power on the first ballot. Under the current rules, superdelegates work as follows:

The First Ballot #

On the first ballot at the convention, only pledged delegates are allowed to vote. Superdelegates are completely barred from voting unless a candidate has secured such a commanding majority of pledged delegates that the superdelegates’ votes could not mathematically alter the outcome. This ensures that the primary voters, and they alone, decide the nominee in a typical election cycle.

The Second Ballot (A Brokered Convention) #

If no candidate secures a majority of pledged delegates on the first ballot, the convention becomes “contested” or “brokered.” On the second ballot—and any subsequent ballots—the rules change. Superdelegates are unlocked and allowed to vote freely.

This means that if a multi-candidate race finishes with no single candidate holding a clear majority, the party establishment (the superdelegates) regain their historic power to act as kingmakers, negotiating and voting to select the nominee. If you are interested in tracking how these rules might influence an upcoming cycle, monitoring presidential primary polls and prediction markets can give you early indications of whether a contested convention is mathematically possible.

Do Republicans Have Superdelegates? #

The short answer is no, the Republican Party does not have superdelegates in the way the Democratic Party does.

However, the Republican National Committee (RNC) does feature a small group of automatic delegates. Each state, territory, and Washington, D.C., sends three RNC members to the Republican National Convention: the state party chair, the national committeeman, and the national committeewoman.

Unlike Democratic superdelegates, these RNC members are strictly bound by the rules of their respective states. If a state Republican party mandates that all its delegates must vote for the winner of that state’s primary, those three RNC members must vote accordingly. They do not have the free-agent status that defines Democratic superdelegates.

Consequently, the Republican presidential nomination is decided entirely by the primary and caucus results, without an institutional safety valve of unbound party insiders.

The Impact of Superdelegates on Modern Elections #

While critics often paint superdelegates as puppet masters operating in smoke-filled rooms, history shows that they rarely vote against the will of the primary voters.

The 2008 Primary: Clinton vs. Obama #

The closest the Democratic Party came to a true superdelegate intervention was in 2008. Hillary Clinton began the race with a massive lead among superdelegates. However, as Barack Obama won a string of primary victories and secured a lead in the pledged delegate count, superdelegates began shifting their endorsements to Obama. Rather than overriding the popular vote, the superdelegates ultimately fell in line with the candidate who held the lead among pledged delegates, avoiding a divisive convention floor fight.

The 2016 Primary: Clinton vs. Sanders #

In 2016, superdelegates again favored Hillary Clinton. Although Bernie Sanders won several high-profile primaries, Clinton maintained a commanding lead in both pledged delegates and superdelegates throughout the race. While the superdelegates did not overturn the popular vote—Clinton won the overall primary popular vote by millions of ballots—their early, public alignment with Clinton fueled arguments that the system was tilted against grassroots candidates, directly prompting the 2018 reforms.

In the modern era, superdelegates act primarily as a theoretical insurance policy. They remain in the background, only relevant if the primary season ends in a deadlock. To keep up with the shifting dynamics of any upcoming presidential race, you can download the Election Tracker app to view the latest polling trends, delegate projections, and approval ratings in one clean dashboard.

Frequently Asked Questions #

Can superdelegates change their minds? #

Yes. Prior to casting their official vote at the Democratic National Convention, superdelegates can change their mind and switch their endorsement at any time. Their public announcements of support during the primary season are non-binding.

How many superdelegates are there? #

The exact number of superdelegates fluctuates slightly from cycle to cycle due to changes in officeholders and party leadership positions, but it typically hovers around 700 to 750. They make up roughly 15% of the total delegates at the Democratic National Convention.

No. Since their introduction in 1984, superdelegates have never voted to nominate a candidate who did not also win the plurality of pledged delegates during the primary season. They have historically aligned themselves with the front-runner.

What is a brokered convention? #

A brokered (or contested) convention occurs when no presidential candidate secures a majority of pledged delegates during the primary season. When this happens, delegates are released from their pledges after the first ballot, and party leaders, including superdelegates, negotiate and vote on subsequent ballots to select a nominee. If you want to watch these political dynamics unfold, tracking the latest national polling trends is the best way to see if a front-runner is on track to secure a clean first-ballot victory.