With 34 percent of the expected vote in, incumbent Davis is well in the lead with 53 percent of the vote so far. His two top challengers, Conyears-Ervin and Collins, are nearly even for second place with 21 percent and 18 percent of the vote, respectively. Four Democrats ran in the primary against Davis in this deep blue district that includes parts of Chicago's west side; Davis has held the seat for 28 years. Collins has run to his left twice before and has been endorsed by progressive groups.

—Monica Potts, 538

In the Ohio Senate race, Moreno leads Dolan 40 percent to 37 percent with 21 percent of the expected vote reporting, but I'd make him a stronger favorite than that close margin suggests. Much of the vote tallied so far is from early and absentee votes, which are probably more favorable to Dolan. We've seen in previous elections that votes cast on Election Day tend to be better for more Trump-aligned candidates, which should benefit Moreno as Ohio starts to count more of those votes. For instance, around this hour of the evening in Ohio's 2022 Senate primary, Vance led with a tad less than 28 percent with a similar share of the vote reporting, but he wound up winning with 32 percent. That was a more crowded race, but you'd rather be Moreno at this point than Dolan.

—Geoffrey Skelley, 538

With just a shade under 20 percent of the expected vote counted in Ohio's 6th District, state Sen. Michael Rulli leads state Rep. Reggie Stoltzfus by 7 percentage points in the regularly scheduled primary and 6 points in the special election. Rulli's massive lead in his home base, Mahoning County, is giving him the early advantage.

—Jacob Rubashkin, Inside Elections

In the only contested Ohio Supreme Court primary today, Democratic 8th District Court of Appeals judge Lisa Forbes is up 64 percent to 36 percent over former public defender Terri Jamison with 26 percent of the expected vote in, according to the Associated Press. The winner will face Republican judge Dan Hawkins, who ran unopposed today, in November to fill the now-open seat of Republican Justice Joe Deters.

The current state Supreme Court is made up of three Democrats and four Republicans. Two of those Democratic justices are up for reelection, alongside Deters's seat. Deters is still running in November, but against his colleague, Democratic Justice Melody Stewart, for different seat on the court. If either Forbes or Jamison can flip Deters's old seat and Democrats can hold on to their other two incumbents, they would gain control of the state's highest court. That seems unlikely though, given Ohio's Republican lean and the results of recent Supreme Court elections in the state.

—Cooper Burton, 538

One of today's most consequential primaries for the general election is taking place in Ohio's 9th District. According to Daily Kos Elections, Trump would have carried the district 51 percent to 48 percent in 2020. But in 2022, incumbent Democratic Rep. Marcy Kaptur defeated Republican Air Force veteran J.R. Majewski 57 percent to 43 percent here thanks to Majewski's weaknesses as a candidate: He exaggerated his military service, attended the Jan. 6 rally (though he says he didn't enter the Capitol) and once subscribed to the QAnon conspiracy theory.

Majewski quickly announced he would run again in 2024, agitating Republican operatives who feared he would once again throw away a winnable House seat. But to their relief, he withdrew from the race a few weeks ago, leaving the primary to state Rep. Derek Merrin and former state Rep. Craig Riedel. Riedel was originally the top alternative to Majewski, but a couple of his pro-Trump supporters withdrew their endorsement of him after audio leaked of him calling Trump "arrogant." That sent GOP elders scrambling to find a new alternative to Majewski, and Merrin — who was in line to be the speaker of the Ohio state House last year until a faction of renegade Republicans joined Democrats to elect a different Republican — jumped into the race just before the filing deadline.

The primary is far from settled, though. While Trump endorsed Merrin just yesterday, and Speaker Mike Johnson endorsed Merrin in January, many establishment Republicans, such as House Majority Leader Steve Scalise and Majority Whip Tom Emmer, are still with Riedel. And Merrin's late entry into the race means he trails Riedel badly in fundraising, $175,000 to $1.2 million. And while he's no Majewski, a Riedel win could still give Republicans headaches: He's aligned with the tea party movement and has previously expressed interest in joining the hardline House Freedom Caucus.

—Nathaniel Rakich, 538