Fewer than one-fourth of Missouri's registered voters cast ballots in this year's primary elections.
The secretary of state's office said Wednesday that 23 percent of the state's nearly 4.1 million registered voters actually voted in Tuesday's primary.
The top draw was a constitutional amendment expanding the right to pray in public places, which attracted a total of nearly 943,000 votes while easily passing.
About twice as many people cast Republican ballots as Democratic ballots — led by the GOP race for U.S. Senate, won by Congressman Todd Akin.