Democratic Gov. Jay Nixon lost his battle with the Republican-controlled Legislature over congressional redistricting, when Missouri's House and Senate on Wednesday rejected the governor's veto of that map.
The state Constitution requires a two-thirds vote to pass a bill into law over the governor's objections.
On Saturday, Nixon asked lawmakers to draw a new congressional redistricting map that better represents "all regions of the state."
Nixon had argued that the map lawmakers passed a week ago "does not adequately protect the interests of all Missourians."
And the governor repeated that concern in a Wednesday evening news release.
"I do not believe this map reflects a fair representation of the interests for all regions of our state," the governor said. "Now that the map is finalized, we expect a robust electoral process in these significantly altered districts."
When lawmakers passed the map a week ago, the House vote was 99-55, 10 votes short of the 109 needed for an override.
But Wednesday's override vote got the bare minimum 109 House votes, with 44 nays.