US President Donald Trump used an Ohio rally to urge voters to support Republican candidates in the November 3 midterm elections, warning that the state could receive less assistance from his administration if Democrats win key races. Trump backed US Senator Jon Husted in his contest against former US Senator Sherrod Brown and Ohio gubernatorial candidate Vivek Ramaswamy in his race against Amy Acton. Ohio is one of eight competitive Senate states, and the elections will determine control of the narrowly divided House of Representatives and Senate. Trump predicted Republicans would outperform expectations despite polls indicating possible Democratic gains. The campaign has focused on data centers and cultural issues including youth transgender surgeries. Ohio gasoline prices have climbed 35% over the past year to an average of $4.16 per gallon, while Canadian retaliatory tariffs linked to Trump's trade policy affect about $3 billion of Ohio exports, based on 2025 figures. The Husted-Brown contest is the country's second-most-expensive Senate race, according to Federal Election Commission filings, and voters remain divided over data-center construction.