Final answer:
According to the author, increasing voter registration numbers could lead to a more competitive Presidential race.
Step-by-step explanation:
According to the information provided, the author suggests that increasing voter registration numbers could lead to a more competitive Presidential race. The passage states that many proposals have been made to encourage greater voter turnout, but changes to voter registration processes have not resulted in a substantial increase in the number of people voting. However, without a greater voter turnout, politicians elected by only a fraction of the population may not enact policies that benefit everyone. This suggests that increased voter registration could lead to a more competitive race as it would involve a larger portion of the population.