Instead, we got a nail-biter of a race that saw Democrat Danny O'Connor, who serves as Franklin County's Recorder, give state Sen. And both O'Connor and Balderson will face voters again on November 6, having both won their party's primaries for the general election.
Although the race was still too close to call, Mr Trump claimed victory and took credit for the Republican's success.
The Republican and Democratic primaries for Kansas governor, the Republican primary for Kansas' 2nd Congressional District seat, primaries for local Kansas House of Representatives seats and a Democratic primary for a seat on the Douglas County Commission were among the races that appeared on local ballots.
Trump took the district with 53 percent of the vote in 2016, just one-point below Mitt Romney's performance there in 2012.
In recent weeks Mr. Trump has made several campaign appearances ahead of State primaries, endorsing candidates for Congress and Governor and imploring his supporters, as he did in OH on Saturday night, to get out and vote.
The race has centered on Trump's tax cuts at times as much as the candidates themselves.
Missouri Attorney General Josh Hawley is expected to take on McCaskill, and in MI, military veteran and business executive John James is vying for the chance to knock off Stabenow.
"It's closer than originally thought, but it's a challenging midterm environment", said one national Republican strategist involved in the race.
Senate Republicans had hoped to make MI, a state which Trump carried, competitive, but it's fallen down the list of top targets for 2018.
Polls are now open for today's Kansas Democratic and Republican primaries. Kasich has been an outspoken leader of the anti-Trump Republicans.
But Democrats - buoyed by enthusiasm ever since the 2016 presidential election - have consistently overperformed in other special elections, and notched upset victories in a Pennsylvania House race in March and in the Alabama Senate race a year ago. All 435 House seats, 35 of 100 Senate seats and 36 of 50 governors' offices are up for grabs in November.
"Voters in Ohio's 12th Congressional District picking a new congressman", King said on CNN's "Inside Politics".
Republicans were hoping for Democratic discord in Kansas' 3rd Congressional District, a suburban Kansas City district where several candidates were fighting for the chance to take on Republican Rep. Kevin Yoder in November.
The five-way Democratic primary features labor lawyer Brent Welder, who campaigned recently with self-described democratic socialists Vermont Sen.
Michigan Democratic gubernatorial candidate Abdul El-Sayed campaigns with support from New York Democrat candidate for Congress Alexandria Ocasio-Cortez at a rally on the campus of Wayne State University on July 28, 2018 in Detroit, Michigan. When asked about this in the polling place parking lot by the Guardian, Balderson turned his back and left it to an accompanying aide to insist that Balderson really meant Danny O'Connor was a liberal.
Also in the race: Native American attorney Sharice Davids and former school teacher Tom Niermann.
And in suburban Seattle, three Democrats vied in a jungle primary for the seat held by another retiring Republican, Rep. Dave Reichert.
Senate contests in Missouri and MI will come into focus as two vulnerable Senate Democrats, Missouri's Claire McCaskill and Michigan's Debbie Stabenow, are expected to easily claim their party's nominations.