Decision Desk HQ Missouri caucus results
They have 1,264 votes in all (Trump 89%) with only 4 counties in the entire state reporting. There will be tons more votes before it's over and Trump may stay around 90%, or at least 80%, but nothing like 98%.
Nbc showing 99% in
https://www.nbcnews.com/politics/2024-primary-elections/michigan-president-results?amp=1#
Missouri != Michigan