or gubernatorial candidates, preferring to pad his own margin of victory. Results Nixon's percentage of the popular vote was only marginally less than Lyndon Johnson's record in the 1964 election, and his margin of victory was slightly larger. Nixon won a majority vote in 49 states, including McGovern's home state of South Dakota. Only Massachusetts and the District of Columbia voted for the challenger, resulting in an even more lopsided Electoral College tally. McGovern garnered only 37.5 percent of the national popular vote, the lowest share received by a Democratic Party nominee since John W. Davis won only 28.8 percent of the vote in the 1924 election. The only major party candidate since 1972 to receive less than 40 percent of the vote was Republican incumbent President George H. W. Bush who won 37.4 percent of the vote in the 1992 election, a race that (as in 1924) was complicated by a strong third party vote. Although the McGovern campaign believed that its candidate had a better chance of defeating Nixon because of the new Twenty-sixth Amendment to the United States Constitution that lowered the national voting age to 18 from 21, most of the youth vote went to Nixon. This was the first election in American history in which a Republican candidate carried every single Southern state, continuing the region's transformation from a Democratic bastion into a Republican stronghold as Arkansas was carried by a Republican presidential candidate for the first time in a century. By this time, all the Southern states, except Arkansas and Texas, had been carried by a Republican in either the previous election or the one in 1964 (although Republican candidates carried Texas in 1928, 1952 and 1956). As a result of this election, Massachusetts became the only state that Nixon did not carry in any of the three presidential elections in which he was a candidate. This is one of only two elections since 1856 that Massachusetts and Rhode Island did not support the same candidate. The other election which the two states did not do so is 1980. This presidential election was the first since 1808 in which New York did not have the largest number of electors in the Electoral College, having fallen to 41 electors vs. California's 45. Additionally, through 2020 it remains the last one in which Minnesota was carried by the Republican candidate. McGovern won a mere 130 counties,