There were also presidential races in Florida, North Carolina, Illinois and Missouri.
In addition to the presidential race, Troy businessman Warren Davidson won the Republican primary to run to fill the seat of former House Speaker John Boehner.
Locally, the ballot was packed with school tax issues, state House and Senate races and county races.
Here’s a look at the highlights.
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Kasich and Clinton win Ohio
John Kasich pulled off a crucial victory in Ohio, throwing a road block in front of front-runner Donald Trump and giving the Ohio governor a chance to continue in the race for the Republican nomination.
But Ohio also gave a win to former U.S. Secretary of State Hillary Clinton, who now appears to be on an unstoppable path to represent Democrats in November. Clinton on Tuesday won victories over U.S. Sen. Bernie Sanders in Ohio, Florida, Illinois and North Carolina, according to early unofficial results.
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Rubio ends his race
Florida Sen. Marco Rubio, once thought to be the establishment candidate who could stop Trump and Texas Sen. Ted Cruz, ended his race for the White House.
“After tonight it is clear that while we are on the right side, this year we will not be on the winning side,” Rubio told his supporters.
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Trump, Clinton win big in Florida, North Carolina, Illinois
Hillary Clinton won 4 states and Donald Trump won 3 states on Tuesday furthering their leads for their party’s nomination.
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Kasich still a long-shot
Now that Ohio Gov. John Kasich has picked up Ohio’s 66 Republican delegates, he has only one path to the Republican presidential nomination: The first brokered Republican political convention since 1948.
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Troy businessman Warren Davidson wins GOP primary to fill Boehner’s seat
Businessman Warren Davidson of Troy won the Republican nomination to run for the seat vacated by retired House Speaker John Boehner in the 8th Congressional District, according to incomplete, unofficial results from the Ohio Secretary of State's office.
“It did resonate with people that they were looking for different results and a different experience,” Davidson said, adding that he was honored to win the primary and looking forward to the upcoming special and general elections.
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Strickland, Portman look ahead to November
Now that their primaries are done, the U.S. Senate race between Sen. Rob Portman and former Gov. Ted Strickland is shaping up to be a key national race.
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Northmont, Kettering school levies appear to pass
Voters in the Northmont and Kettering school districts appear to have narrowly approved levies for new school funding — Northmont for daily operating expenses, and Kettering for a long-term facilities plan.
Northmont’s levy was trailing for much of the night, but when the final precincts reported the result flipped, with 50.7 percent of voters approving the levy, according to unofficial results from the Montgomery County Board of Elections.
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Former Dayton Mayor Leitzell, Miami Twp. trustee win Montgomery County Commission primaries
Voters on Tuesday set the Republican lineup for the Montgomery County Commission races in November, selecting Gary Leitzell and Bob Matthews to face two long-time Democratic incumbents.
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New faces from area heading to Ohio House and Senate
Term limits will have cost the two most powerful men in the state Senate their jobs this year — with other departures leading to seat swaps and competitive General Assembly races. Area voters Tuesday named the candidates likely to fill those seats.
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Warren, Butler among counties with delayed results due to traffic
According to our news partners, WCPO 9 On Your Side, a semi-truck may have pushed a car off the Combs-Hehl Bridge on Interstate 275 near Coney Island during a series of chain-reaction crashes that happened about 4:30 p.m.
WCPO reports that 12 vehicles were involved in the chain reaction on the bridge, according to Campbell County Police Chief Craig Sorrell. Injuries to the motorists on the bridge were not life-threatening, he said.
The accident led to a court order from Susan Dlott, United States District Court for the Southern District of Ohio, to keep the election polls in Butler, Clermont, Hamilton and Warren counties open an extra hour.
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Greene County incumbents defeat GOP challengers
Incumbent Greene County Commissioners Bob Glaser and Tom Koogler fought off Republican challengers in their primaries for re-election, according to county preliminary unofficial results.
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Special report from our Ohio Politics political team
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