Report authors R. Michael Alvarez and Jonathan Nagler have analyzed the likely impact on voter turnout should New Mexico adopt Same Day Registration (SDR). Under the system proposed in New Mexico, eligible voters who miss the current 28-day deadline for registering by mail may be able to register to vote during the state's early voting period. The availability of Same Day Registration procedures should give voters who have not previously registered the opportunity to vote.

Consistent with existing research on the impact of SDR in the other states that use this process, the authors find that SDR would likely lead to substantial increases in voter turnout:

  • Overall turnout could go up by 4.4 percent.
  • Turnout among those aged 18 to 25 could increase by 8.0 percent.
  • Turnout for those who have moved in the last six months could increase by 6.5 percent.