By Joe Ferguson | Arizona Daily Star
Gerrymandering, altering voting districts to give one party an advantage, is unlikely the reason Arizona is a red state, the AP found.
Nationally, 49 percent of Americans went to the polls last year backing Republican candidates in House races throughout the country, yet the GOP controls 55 percent of the U.S. House of Representatives.
An investigation by The Associated Press looked at political redistricting — and what is known as gerrymandering — throughout the country as a legal fight in Wisconsin heads to the Supreme Court. A decision there could shape how political districts are drawn in every state.
The AP used a mathematical formula to determine the effects of gerrymandering, in which the party in power alters voting districts to its advantage, in federal and state legislative races across the country.
