Why are congressional districts redrawn at intervals?
(1 point)
•They are redrawn after every presidential election to reflect the vote of the winning party.
• They are redrawn after every congressional election to prepare for the census.
• They are redrawn after every 10-year census to reflect population changes.
• They are redrawn after every senatorial election to reflect population changes.
• They are redrawn after every presidential election to prepare for the census.