Four states: Missouri, Nevada, Ohio, and Tennessee have voted for the winner in thirteen of the fourteen most recent presidential elections. Since 1948 every candidate who won recieved the vote from at least three of those states. Republicans usually do better in states with lower populations. No republican since 1904 has been elected without winning at least thirty states. For democrats, it's twenty-three states. Democrats tend to recieve more female support, so they must have at least fifty-five percent of the female vote to recieve the popular vote. Since Dwight Eisinhower was elected for a econd term, candidates who carried the votes of citizens under thirty have won all but two elections. In the twentieth century, only Woodrow Wilson has been elected without recieving the vote from his home state. All others got the vote.