TOPEKA, Kan. (AP) -- Thanks to a federal court order, three Kansas Senate districts now have a pair of incumbents.

Legislators were still reviewing the boundaries for the 40 Senate districts Friday, the day after three federal judges issued a ruling redrawing the state's political boundaries.

The judges were handling a lawsuit over the Legislature's failure to adjust lines to account for population changes over the past decade.

In the Kansas City area, the new 37th District includes GOP Sens. Pat Apple, of Louisburg, and Ray Merrick, of Stilwell.

In southeast Kansas, a new 15th District includes Republican Sens. Jeff King, of Independence, and Dwayne Umbarger, of Thayer.

And in northwest Kansas, the new 40th District is home to Republican Sen. Ralph Ostmeyer, of Grinnell, and Democratic Sen. Allen Schmidt, of Hays.