The final poll conducted in Missouri before tomorrow’s primary puts Bernie Sanders in front of Hillary Clinton.
The PPP poll of likely voters put Senator Sanders ahead by just one point. The poll has a margin of error of 3.4 per cent.
Missouri will hold an open primary on Tuesday, which allows all registered voters to vote in the Democratic primary, regardless of party registration. This is a format that has favored Sanders in states such as Michigan, which he won last week.