So, according to Erc's latest projections, Trump should win 37 delegates from Missouri, 52 from Illinois, and 29 from North Carolina. This brings his total to 688 which is 549 shy of 1,237. It is likely that Trump will end March less than 500 delegates away from the nomination if he can pull off Arizona where he is favored. I'm giving Utah to Cruz since Rubio is out. He still has a very doable path to the outright nomination and avoiding an open especially with a strong showing in Illinois tonight.
538 says he needs to be at 719 to be on track for the nomination by the end of tonight.
Did 538 take into account that every Republican race has different rules?