The two candidates will face off again in November.
With 100% of precincts reporting, Balderson had received 101,574 votes, or 50.2 percent, while the Democrat Danny O'Connor had received 99,820 votes, or 49.3 percent of the vote.
Polls closed at 7 p.m. Trump had weighed in on Schuette's behalf - the attorney general had been a loyal supporter of the president's, but during the presidential election Calley had withdrawn his support for Trump in October 2016 following the release of the infamous Access Hollywood tape.
On Twitter, Trump called Kobach a "strong and early supporter of mine".
Republican Troy Balderson led Democrat Danny O'Connor by about 1,700 votes with all precincts reporting, although the OH secretary of state's office said a final result would be delayed until more than 8,000 provisional and absentee ballots were counted.
A number of states are picking candidates today for that big election in the fall. Bernie Sanders, Vermont independent, and Alexandria Ocasio-Cortez, the newest socialist star, made several endorsements in Tuesday's primaries. Other top candidates include Sharice Davids, an EMILY's List-endorsed former MMA fighter attempting to become the first Native American lesbian in Congress, and Tom Niermann, a teacher running a more moderate campaign with a long list of local officials' endorsements. Even in voter interactions, Balderson left much to be desired.
Debbie Stabenow. Trump endorsed James, who also had support from many in the GOP establishment in his race against self-funding venture capitalist Sandy Pensler. "I want to see someone who's interested in working with the other party so we can actually get something done".
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Alisson kept a clean sheet on his Liverpool debut as Jurgen Klopp's side thrashed Napoli 5-0 in on Saturday evening. We feel good together and I hope that Lyon will have a very good season.
Ohio's Republican Gov. John Kasich said the race shouldn't even be close, but it is. Described by campaign operatives as a "Whole Foods" district, the largely suburban region features a far more affluent and educated voter base than the typical Trump stronghold.
Democrats, meanwhile, have been attacking Balderson by casting his support of tax cuts as threats to Social Security and Medicare. O'Connor had raised almost $1.5 million and had spent $1.35 million, but had vastly outspent Balderson when it came to television advertising. The Republican campaign arm and its allied super PAC were forced to pick up the slack, spending more than $4 million between them.
The special election will fill the seat vacated by Rep. Patrick Tiberi (R), who is retiring.
"With twice as many registered Republicans as Democrats, this district should have been a slam dunk for the GOP, and the fact that we are still counting ballots is an ominous sign for their prospects in November", DCCC Chairman Ben Ray Luján said in a statement.
Conservative election analyst Henry Olsen predicted on Hill.TV's "What America's Thinking" on Monday that impeachment hearings against Trump will happen if Democrats take back the House and Senate in November. He'd join Sen. Tim Scott as the only black Republican senators if he did.
His favored candidate for MI governor, state Attorney General Bill Schuette, defeated Lt. Gov. Brian Calley to claim the GOP nomination.