Democratic presidential nominee

Ohio was scheduled to vote today, but the election was postponed until June 2 due to the coronavirus pandemic. The delay capped hours of confusion in which the election was called off by the state's governor, Mike DeWine, only for a judge to then rule that he did not have the authority to do so. The state's health director, Amy Acton, then called off the election on the grounds of a health emergency.

Coronavirus: Ohio Supreme Court allows delay to primary election

Sources:  Cleveland Plain Dealer  Columbus Dispatch