Updated: 6:26 p.m.

Missouri’s Republican-controlled House and Senate overrode Gov. Jay Nixon’s veto of a redistricting bill Wednesday, making the plan law.

The House vote was 109-44, fulfilling the two-thirds-majority constitutional requirement for a veto override, while the Missouri Senate voted 28-6.

The new map essentially eliminates the St. Louis-based 3rd district held by Rep. Russ Carnahan (D) and puts him in the same district as Rep. William Lacy Clay (D). Carnahan now has two options: challenge his Democratic colleague in a district that includes Clay’s African-American base or run against a Republican in a nearby but heavily GOP suburban or exurban district.

The state lost one seat based on 2010 census numbers and will have eight Congressional districts after 2012.