JEFFERSON CITY, Mo. (AP) -- Missouri's most competitive Republican governor's primary race in two decades is coming to a close Tuesday.
Extended coverage: Your Votes Counts
Missouri voters will choose from among four well-funded candidates in the GOP governor's primary. Democrats also will select their gubernatorial nominee to replace term-limited Gov. Jay Nixon.
And primary voters will pick a full slate of candidates for Missouri's statewide executive offices, the U.S. Senate and House, the state Legislature and numerous local offices.
Election officials are predicting a voter turnout of 31 percent.
Republican gubernatorial candidates John Brunner, Eric Greitens, Catherine Hanaway and Peter Kinder had together already spent more than $22 million as of about two weeks before the election.
Not since 1992 has there been a Republican governor's primary as hotly contested with as many candidates.