Hillary Clinton has won the Missouri Democratic primary, which had been too close to call since Tuesday's elections.
Clinton beat Bernie Sanders, who conceded defeat in the race Thursday, by a razor-thin margin of 1,531 votes.
The outcome of the race will have a minimal effect on delegates under the Democratic party's proportional distribution rules.
The Sanders campaign opted against seeking a recount in the contest, with the candidate telling the Associated Press he would "prefer to save the taxpayers of Missouri some money."
Clinton was victorious in the other states voting Tuesday, including Florida, North Carolina and Ohio.