When Donald Trump launched his 2024 presidential campaign after a disappointing midterm election for Republicans, his trajectory was something of a mystery. However, seven days before Iowa’s kick-off caucuses, his standing among the GOP faithful is hardly in doubt. Voters, campaign operatives, and even some of the candidates on the ground overwhelmingly agree that the Republican former President is the prohibitive favorite heading into the January 15 caucuses — whether they like it or not. Just beneath all the perceived certainty about Mr. Trump’s victory, however, lies serious risks for the front-runner…