Polls for Missouri’s presidential primary are open from 6 a.m. to 7 p.m. today.
Registered voters will be asked to pick a ballot from the Democratic, Republican, Libertarian or Constitution parties. Democrats can pick among four candidates, including President Barack Obama. Republicans must pick among 10 candidates. Former House speaker Newt Gingrich is not among them because he did not file to be on the Missouri ballot.
One candidate is listed on the Libertarian Party ballot, and no candidates are listed for the Constitution Party.
For Republicans, the primary is nonbinding, meaning no delegates will be picked. That will occur at GOP caucuses throughout Missouri on March 17.