Trump tells a rally in Ohio that he believes there will be a “big surprise” in the upcoming elections.

US President Donald Trump has continued rallying for Republican candidates while visiting Ohio, proposing a defiant outlook on his party’s chances in the November 3 midterm elections.

Trump told a rally in Vandalia, Ohio, that he believes there will be a “big surprise” in the upcoming elections, claiming his Democratic opponents do not know what is happening.

Polls have suggested that Democrats could gain ground in the midterms, but the US president said Republicans would do better than critics expect.

“Just get out and vote,” Trump said as he rallied for US Senator Jon Husted, gubernatorial candidate Vivek Ramaswamy and other Republicans.

“If you do that, we’re going to win, and we’re going to win big,” he said.

Ohio’s Senate race

Multiple incumbent Republican senators across the country face tough political headwinds, with Trump’s popularity falling in recent months as higher petrol prices and those for other staples persist amid the US-Israel war ⁠⁠on Iran.

Husted, a Republican in a competitive Ohio race against Democrat Sherrod Brown, hopes the president can motivate supporters who might otherwise skip midterm elections.

Trump garnered more than 55 percent of the Ohio vote in the 2024 presidential election, but economic concerns since then have sunk his approval ratings.

Ohio petrol prices increased 35 percent over the past year to $4.16 per gallon (3.8 litres) on average, according to the American Automobile Association (AAA), which compiles data ⁠⁠on automobile travel. Trump’s trade policy with Canada has also led to retaliatory Canadian tariffs that affect about $3bn worth of Ohio exports, based ⁠⁠on 2025 figures, Canadian broadcaster CBC reported.

Talking to reporters shortly before addressing Saturday’s rally, Husted said the US has to win the Iran war “on our terms” and, in the interim, he is “showing people that I’m fighting for lower prices”.

Hot political issue

Trump extensively promoted his administration’s action on data centres, mainly those built for AI, during the rally, saying he was seeking to ensure they “benefit local communities” and praising Husted for an unsuccessful attempt to push forward legislation on the issue.

“Look, there’s so much money to be made for Ohio. You can’t just turn them off. They’ll go to China,” he said, repeating his defence of data centres.

Data centres have become a hot political issue, drawing bipartisan opposition in races across the country, with voters concerned about their impact on electricity prices, farmland and water supplies.

The issue became especially acute in Ohio, where Husted has been repeatedly attacked for his role in attracting data centres to the Midwestern state as lieutenant governor.

The Republican-controlled Senate tried to advance legislation this past week sponsored by Husted that would ask utility regulators to effectively charge large power users more, as consumers struggle with high energy costs. But it was blocked by nearly all Democrats.

“Senator Jon Husted gave billions in tax breaks to Big Tech to make sure they would build their data centres in Ohio,” Brown wrote on X on Friday, ahead of Trump’s visit. “Now, he’s making Ohioans foot the bill.”