The governor’s decision signals the unrest in Ferguson, Mo., has calmed.
Reaction broke down strongly along racial and political lines.
Nixon said he took the action after "coordinated" attacks on civilians, officers.
Gov. Jay Nixon received criticism for waiting until Thursday to make a change in security.
The lead official is Capt. Ron Johnson, who grew up in the town of Ferguson.
Michael Brown, 18, was shot by a police officer in Ferguson, Mo.
The guard was initially called in early Monday morning.
Missouri GOP chairman says Nixon's absence “allowed a lot of terrible things to happen.”
Texas Gov. Rick Perry will also appear after an indictment against him was revealed Friday.
No arrests were made in the Missouri town, down from dozens a night.
Rep. Lacy Clay said the governor will announce he's taking police "out of the situation."
Others governors on CNN's "State of the Nation" were more circumspect in responses.