Today is the deadline to register to vote in Missouri’s presidential primary, set for Feb. 7. Secretary of State Robin Carnahan says those who want to participate in the election process need to act now.

AUDIO: Jessica Machetta reports (1:14 min.)

Forms and registration materials are available at your local county clerk’s office or at All forms need to be postmarked by the end of today to be valid. The deadline to register for this November’s general election is Oct. 10.

If you have changed your name or address, you will need to update your voter information with the county clerk. If there are no changes, your registration from previous elections is still valid, Carnahan says. You can check your status at the website above, through the Secretary of State’s.

Carnahan says voters turned out in high numbers in Missouri’s last presidential primary in 2008. More than 1.4 million Missouri votors cast ballots — that’s about 36 percent of the state’s registered voters.

“The 2008 Presidential Primary set records for turnout surpassing 2004 totals by approximately 870,000 votes and 2000 totals by nearly 670,000 votes,” Carnahan says.

There is one GOP candidate Missourians will not be able to vote for in the primary: Newt Gingrich did not file for the office before the deadline to do so last fall.