By James Oliphant (Reuters) -Former President Donald Trump trounced his Republican rivals on Monday in the first nominating contest of the 2024 election, leaving his top rivals with more questions than answers about the path forward for their candidacies. Here are takeaways from the Iowa caucus: MIND MADE UP According to surveys conducted of Iowa caucus-goers, the frontrunner Trump was never in danger of losing. An overwhelming majority of caucus-goers – 64% – made the decision on which candidate to support before this month. Of those voters, 64% went for Trump, entrance polls by Edison Resear…