We're just a week away from Missouri's August 2nd primary and the four-way race for governor on the Republican side is “too close to call.” That's according to a SurveyUSA poll conducted exclusively for KSDK.

Running for the Republican nomination are former U.S. attorney and state House speaker Catherine Hanaway, Rhodes Scholar and former Navy SEAL Eric Greitens, businessman John Brunner, and Lt. Governor Peter Kinder.

According to SurveyUSA, who polled likely voters across the state of Missouri over the past week, all four candidates are nearly within the margin of error from each other, which is 3.6 percent.

Greitens and Brunner are the narrow front runners at 25 and 21 percent, and the poll shows all four have almost identical favorability ratings with voters.

KSDK's political analyst, Dave Robertson, says people are still trying to figure out what separates these candidates.

“I think it's clear that this is an outsider year,” said Robertson. “Because the outsider candidates who have never won elected office...are doing better than the two candidates on the Republican side who have won elected office,” he said, referring to the lead Greitens and Brunner have over Hanaway and Kinder.

On the Democratic side, Attorney General Chris Koster has the clear lead in the primary for governor with nearly a 50 point lead over his three opponents, and 26 percent of voters say they are still undecided.