The presidential primary season may be over with President Joe Biden and former President Donald Trump heading for a rematch, but several down-ballot races are up for grabs that will determine control of Congress. Ohio’s primary on Tuesday decided which Republican will take on Democratic incumbent Sen. Sherrod Brown in November, as well as congressional contests key to the GOP House majority. This series, Buckeye Blitz, will examine the politics behind the races and the issues that will drive 2024 turnout. Part Three, below, looks at how the presidential race will shape the Ohio Senate race now that Bernie Moreno has been selected as the Republican nominee.

COLUMBUS, Ohio — Donald Trump handed Democrats their desired challenger in the Ohio Senate race, propelling entrepreneur Bernie Moreno to the Republican nomination on the strength of his endorsement.