Republican US Senate candidate J.D. Vance arrives onstage after winning the primary, at an election night event at Duke Energy Convention Center on May 3, 2022 in Cincinnati, Ohio.
CNN  — 

Ohio’s Republican Senate primary was the first major midterm test of former President Donald Trump’s enduring influence over the Republican Party – and Trump’s candidate won.

J.D. Vance, the venture capitalist and “Hillbilly Elegy” author, emerged from a well-funded field of Republicans vying to replace retiring Sen. Rob Portman.

It was the marquee contest of primaries in Ohio and Indiana on Tuesday in which incumbents and establishment-backed figures otherwise largely prevailed. Ohio Gov. Mike DeWine easily bested Republicans who had criticized his handling of the coronavirus pandemic, while Democratic Rep. Shontel Brown cruised to victory in her Cleveland-area congressional district in a rematch against progressive Nina Turner.

Here are six takeaways from Tuesday’s primaries:

Trump is still the GOP’s primary mover

Vance was languishing in the polls and written off by several of his rivals – until Trump stepped into the race. With his