Illinois Primary Election 2026: Record Turnout and What It Means for Democracy

Unprecedented Midterm Voter Engagement in Illinois

The 2026 Illinois primary election is shaping up to be a remarkable moment in the state’s political history, with voter turnout figures that are challenging conventional expectations about midterm elections. According to Anthony Salvanto, CBS News executive director of elections and surveys, the participation rates are approaching levels typically seen only during competitive presidential primaries—specifically matching the turnout from 2020. This is genuinely extraordinary for a midterm election cycle. Salvanto projects that approximately 1.5 to 1.6 million Democrats and about 1 million Republicans will cast their ballots in this primary. “For a midterm to come close to a presidential, that is really sort of eye-opening,” he observed. By noon on primary day, Chicago alone had already seen over 16% turnout, with 250,364 ballots cast out of more than 1.5 million active registered voters. What makes this even more significant is that early voting data reveals a substantial number of first-time primary voters participating, which could make the results less predictable than in previous elections. The energy isn’t confined to one party either—both Democratic and Republican turnout appears strong, suggesting that Illinois voters across the political spectrum feel they have something important at stake in this election.

Why Are So Many People Voting This Year?

The exceptional turnout isn’t happening by accident—there are concrete reasons why Illinois voters are showing up in such impressive numbers. One of the primary factors driving this engagement is the sheer number of contested races on the ballot this year. Unlike many primary elections where incumbents run unopposed or face only token opposition, the 2026 Illinois primary features numerous competitive races where the outcome is genuinely uncertain. Several seats that have been held by the same representatives for years, even decades, are now open for the first time in a generation. This creates a sense of opportunity and importance that motivates voters who might otherwise sit out a midterm primary. Additionally, the political climate under the Trump administration has energized voters on both sides, particularly around issues like immigration enforcement and federal policies that directly affect Illinois residents. The Democratic Senate primary, in particular, has become a referendum on how aggressively candidates will oppose Trump administration policies, giving voters a clear choice with real consequences. The combination of open seats, competitive races, and high-stakes policy debates has created a perfect storm of civic engagement that is drawing people to the polls who have never participated in a primary election before.

The Battle for Dick Durbin’s Senate Seat

At the heart of this election cycle is the race to fill the U.S. Senate seat previously held for decades by Dick Durbin, one of Illinois’ most prominent and long-serving senators. This contest has become a potential tone-setter not just for Illinois but for Democratic primaries across the country during this midterm cycle. The three leading Democratic candidates—Lieutenant Governor Juliana Stratton, U.S. Representative Robin Kelly, and U.S. Representative Raja Krishnamoorthi—have all pledged to fight Trump administration policies, particularly regarding ICE and homeland security, though they differ in their approaches and intensity. Governor JB Pritzker has thrown his considerable weight behind Stratton, endorsing her and donating millions to her campaign, which will test just how much influence the governor has over Illinois Democrats. However, Krishnamoorthi has significantly outraised and outspent his opponents, pouring more than $20 million more than Stratton into advertising alone, according to AdImpact. The race has also attracted substantial outside money, with Super PACs and out-of-state individual donors contributing millions of dollars, raising questions about the role of outside spending in state races. The outcome will reveal not only who will represent Illinois in the Senate but also provide insights into what Democratic voters prioritize: loyalty to established party leaders like Pritzker, fundraising prowess and name recognition, or specific policy positions on resisting the Trump administration.

Musical Chairs in Congress: New Faces for Old Districts

The Senate race has created a domino effect throughout Illinois’ congressional delegation, opening up seats that have been held by the same representatives for remarkably long periods. Because both Krishnamoorthi and Kelly are running for Senate, their U.S. House seats in the 8th and 2nd districts are now open for the first time in years. In an interesting twist of political history, former U.S. Representative Jesse Jackson Jr., who represented the 2nd District from 1995 until November 2012 when he stepped down citing health reasons, is attempting a political comeback and could win the Democratic nomination to reclaim his old seat. The 8th District, which includes the Far Northwest Side of Chicago along with several west and northwest suburbs like Carol Stream, Schaumburg, Hoffman Estates, Geneva, and Elgin, is seeing its own competitive race. Meanwhile, U.S. Representative Danny Davis is retiring after 30 years, creating a crowded ballot in the 7th District, and U.S. Representative Jan Schakowsky’s retirement after nearly three decades has opened up a wide race with many candidates in the 9th District. Even the governor’s office is affected—Governor Pritzker is running for a third term but with a new running mate since Lieutenant Governor Stratton is pursuing the Senate seat. These simultaneous openings represent a generational shift in Illinois politics, giving voters the opportunity to reshape their representation in ways that haven’t been possible in decades.

The Math of Democracy: Why Multiple Candidates Matter

Political science professor Stephen Maynard Caliendo from North Central College points out that the large number of candidates in many of these races creates both opportunities and challenges for democratic representation. When numerous candidates split the vote, someone can win with a relatively low percentage of the overall vote, which Caliendo describes as “problematic from a democratic standpoint.” Illinois doesn’t require candidates to receive a majority plus one to win, as some other states do, meaning there are no runoff elections at the state level if no candidate reaches 50% of the vote. Whoever gets the most votes becomes the nominee for November, regardless of whether they’ve earned the support of even half of primary voters. “When you have this many candidates, somebody’s going to win with a pretty low percentage of the overall vote,” Caliendo explained. “We won’t go into a runoff if nobody gets to 50%. Whoever gets the most votes, that’s going to be the person who is the candidate for November, and so because you’re talking about those percentages that are spread out over numbers of candidates, surprises can absolutely happen tonight.” This creates a situation where strategic voting, name recognition, and the ability to build a coalition across different voter groups become even more important than in a head-to-head race. It’s worth noting that Chicago’s aldermanic and mayoral elections do involve runoffs if no candidate gets 50% of the vote—there have been runoffs in the last three mayoral elections—but the state doesn’t have the same rules, and Chicago’s local elections aren’t until 2027 anyway.

What Happens Next: The Road to November

As polls closed at 7 p.m. on primary day (with anyone still in line allowed to vote), Illinois voters had made their choices about who will represent them in the November general election. The voter demographics showed interesting patterns, with Chicagoans aged 65-74 casting the most ballots (53,074), followed by ages 55-64 (42,982), those over 75 (41,534), and then ages 35-44 (36,710). This age distribution suggests that older, more established voters still dominate primary elections, though the presence of first-time primary voters in the data indicates that newer participants are also engaging with the process. The number of ballots cast rose steadily hour by hour from when polls opened at 6 a.m., demonstrating consistent engagement throughout the day rather than just rushes at opening or closing times. For those who needed to find their polling place, resources were available through the Illinois Board of Elections website and county clerk websites, though voters had to be careful because some areas, especially in Chicago, have multiple polling places representing the same precinct in the same neighborhoods. The results of this primary will set the stage for November’s general election and could influence how Democrats approach midterm races in other states, particularly regarding how to position themselves in relation to Trump administration policies and how to balance establishment endorsements with grassroots energy and outside funding.