The poll shows that, in a sample of 400 likely Republican voters, businessman John Brunner leads the pack with 23 percent support — just 2 percentage points ahead of former Navy SEAL Eric Greitens and former Missouri House Speaker Catherine Hanaway, who are tied at 21 percent each; and 5 points ahead of Lt. Gov. Peter Kinder, who is at 18 percent. That poll has a margin for error of plus or minus 5 points.
Meanwhile, Missouri’s U.S. Senate race is very close, with incumbent Republican Roy Blunt holding a 4-percentage-point lead over his likely Democratic Party opponent in November, Secretary of State Jason Kander. Blunt’s edge was just within the poll’s margin of error.
Both candidates have opponents in Tuesday’s primary, but each is heavily favored to win there.
The poll, which was conducted for the Post-Dispatch by Mason-Dixon Polling & Research, also found that Donald Trump and Hillary Clinton are in a virtual tie in Missouri.
Read more: St. Louis Post-Dispatch