In black boots, jeans and an untucked shirt — the fund-raiser dress code specified “ranch casual” — Gov. Ron DeSantis of Florida on Saturday tried to persuade Republican voters in Nevada still loyal to former President Donald J. Trump that the party’s formula for winning elections was beyond its shelf life. Headlining a conservative jamboree in the swing state, where loyalties to Mr. Trump still run deep, Mr. DeSantis never mentioned his rival for the Republican Party’s 2024 presidential nomination during a speech in Gardnerville, Nev. But the Florida governor sought to draw a not-so-subtle contrast between himself and the former president, a onetime ally who is the party’s overwhelming front-runner in a crowded Republican field. “We’ve developed a culture of losing in this party,” Mr. DeSantis said, adding, “You’re not going to get a mulligan on the 2024 election.”

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Persons: Ron DeSantis, Donald J, Trump, DeSantis, “ We’ve, ” Mr, “ You’re, ” Organizations: Republican Locations: Florida, Nevada, Gardnerville