The redrawing of legislative district boundaries. A 1967 federal law requires House members be elected from single-member districts that (within each state) have nearly identical populations. House maps must be redrawn after reapportionment but before the first congressional election of each decade, based on population changes in each state revealed by the census.
Redistricting

Inside Elections with Nathan L. Gonzales; Bradley Wascher


















In terms of money flowing through the campaign-finance system, political action committees (PACs) are three times more active than candidates running for reelection or office. That is concentrated political power that leaves many congressional candidates running for reelection or office dependent on PAC support.
