Missouri is one of the five states set to hold primary elections on Tuesday. In the Democratic field, where polls show a tight race between former Secretary of State Hillary Clinton and Vermont Sen. Bernie Sanders, delegates will be awarded proportionally.
However, if the winner of the Republican primary - where Trump is leading - earns more than 50 percent of the state's overall votes, he will walk away with all 52 delegates, making Missouri a big prize for GOP contenders.
Frank Morris of Here & Now contributor KCUR in Kansas City, Missouri, is watching the race closely and shares the latest with host Jeremy Hobson.
This segment aired on March 14, 2016.