Final answer:
Ronald Reagan achieved his landslide victory in 1980 by appealing to moderate and conservative voters who were concerned about social change and the perceived loss of American power.
Step-by-step explanation:
Ronald Reagan achieved his landslide victory in 1980 by appealing to a combination of factors. First, he appealed to moderate and conservative voters who were concerned about social change and the perceived loss of American power. Reagan promised to halt and reverse the social and economic changes of the previous generation by citing big government and attempts at social reform as the problem. He also attracted support from self-identified Evangelical Christians who had previously voted for the Democratic candidate in 1976.