Which factor influences the establishment of an independent redistricting commission in Arizona?

The establishment of an independent redistricting commission in Arizona is significantly influenced by the year designation as ending in a specific digit. This refers to the fact that Arizona's redistricting occurs every ten years, following the census, specifically in years that end in the digit “1” or “0.” This approach ensures that new district maps reflect changes in population and demographics accurately after each decennial census.

The timing of redistricting is critical as it must align with these census years to appropriately represent the electorate. The independent redistricting commission was created in Arizona to remove partisan bias from the drawing of district lines, aiming to create fair representation. Establishing such a commission in the specified years was established through voter-approved measures, specifically Proposition 106, which was enacted in 2000, thereby solidifying the importance of the year-ending digit as a factor in creating the commission.