Ohio set for marquee races in the fall. US Senate contest seen as crucial for control of the chamber
Tuesday’s primary in Ohio 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 during a difficult midterm year, 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 
