The primary election in Ohio has set up what is expected to be one of the most expensive races for U.S. Senate this year as Republicans try to hold on to the chamber, while biotech billionaire Vivek Ramaswamy will face a challenge from the state’s former health director as he seeks to keep the governor’s office in GOP hands.

Ohio's primary election set up two marquee matchups in November.

Candidates for Ohio’s top elected offices will stand before voters in a statewide primary on Tuesday, although many of them are already looking ahead to the November general election.