Nesting is a redistricting method of creating two or more state lower legislative chamber districts that are completely contained within the boundaries of a state upper legislative chamber district. A number of U.S. states either require or encourage the lower district boundaries to nest within the upper district boundaries.
Maptitude for Redistricting is the professional tool for political redistricting. It is used by a supermajority of the state legislatures, political parties, and public interest groups.