The N.C. Legislative Redistricting Committee voted Tuesday to support the Sutton II plan, which is favored mainly by Democrats, over the Justus plan, which primarily has Republican backing.
The plans are named for the legislators who drew the districts.
The committee, which is almost equally split between Democrats and Republicans, approved the Sutton II plan in a 22-20 vote.
But some Republican legislators said they are angry at how the Sutton II plan distributes seats, claiming that it favors Democrats.
Every state has to redraw its legislative districts every 10 years to reflect changes in population.
Parties often tweak the lines for their own benefit, trying to gain the upper hand in future elections.
But Rep. Ronnie Sutton, D-Hoke, said the Democrats had tried to reach a compromise with the Republicans over the redistricting issue, altering an earlier proposal called Sutton I.
"Several major changes were made with the redistricting plan one, primarily as it effects the Mecklenburg area," he said. "I think the Sutton plan is a reasonable plan. It is not perfect but reasonable."
But Rep. Larry Justus, R-Henderson, said he was displeased with the failure of his plan and efforts by the Democrats to push the Sutton plan II through the House.