Iowa has become existential for Ron DeSantis's presidential hopes

Despite the foreboding conventional wisdom, Donald Trump has not yet concluded the Republican presidential primary victorious. While the former president is indeed the dominant front-runner, with betting markets giving him a 3-in-4 chance of winning the nomination, that’s only roughly the same chance Hillary Clinton had against him in the general election in 2016 (in the actual statistical modeling, not the wishcasting of the infamous New York Times needle). And, as we all know, Clinton lost.