The Justice Department has given its approval to a new layout for Alabama's congressional districts, clearing the way for a map that makes reelection a better bet for the state's seven House members.

Although Alabama didn't lose or gain any seats during the once-per-decade redistricting process, it adjusted its lines due to changes in population. The state has six Republicans in the House and one Democrat, who represents a majority-minority district.

Alabama is one of a number of states that must get federal pre-clearance for their maps because of a history of discriminating against minority voters.