2020 Missouri primary election results

Former Vice President Joe Biden is the projected winner of the Missouri Democratic primary and President Donald Trump is the projected winner of the Missouri Republican primary, based on an ABC News analysis of the exit polls and the vote so far. Voters headed to the polls on Tuesday to cast their ballots, in which Democrats have 68 delegates and Republicans have 54 pledged delegates at stake.

The polls opened at 6 a.m. and closed at 7 p.m. CDT.

State significance

Despite voting Republican in the previous four presidential elections since 2000, the Show-Me State is considered a battleground swing state.

During the 2016 Democratic primary, former Secretary of State Hillary Clinton narrowly defeated Vermont Sen. Bernie Sanders by a margin of 49.61% to 49.36%. The majority of votes went to Sanders in Kansas City, the most populated city in the state. He won Clay, Platte and Cass counties, while Clinton won Jackson County.

On the Republican side, President Donald Trump edged Texas Sen. Ted Cruz by less than 2,000 votes in 2016. While Cruz won some of the most populated counties, including Jackson County -- home to Kansas City -- Trump won by significant margins across the state's rural counties.