Trump barely got 50% of the Republican votes in conservative Iowa, which is not very impressive. Though it was cold, with only 14% showing up, and 7% voted for Trump, all of whom were Republicans. The main takeaway is that almost half of the Republicans voted for someone else. Not something to boast about if you are the “incumbent”. This is nowhere close to getting him reelected. He needs nearly all Republican votes, plus many independents, to win swing states. He is toast.