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Former President Donald Trump and President Joe Biden have both clinched their respective nominations in the presidential race, but primary season is just getting started. The biggest state to watch tonight is in Ohio, where a closely contested GOP primary will decide which Republican faces off against Sen. Sherrod Brown in one of this fall’s biggest Senate races. Trump-endorsed businessman Bernie Moreno seems to have an edge in that contest over state Sen. Matt Dolan and Ohio Secretary of State Frank LaRose. Trump-aligned Republicans will be pulling for Moreno today — but so might Democrats, who see Moreno as an easier target to defeat in November.
Which wing of the GOP comes out ahead seems to be the theme of the day throughout the Buckeye State, where we’re also tracking a slew of competitive Republican primaries for U.S. House. Meanwhile, two incumbents in Illinois — Democratic Rep. Danny Davis and Republican Rep. Mike Bost — are looking to stave off tough primary challenges, while California will host a Super Tuesday rematch in a special election to decide who will fill former Speaker Kevin McCarthy’s seat in the House for the remainder of this year.
As for timing, we should start to see results come in shortly after polls close at 7:30 p.m. Eastern in Ohio and 8 p.m. Eastern in Illinois. As always, 538 analysts will be here bringing you the latest results and analysis throughout the evening. Thanks for joining us!
—Tia Yang, 538