were elected from the South as late as the 1890s, usually from overwhelmingly black areas. Also in the 1890s, the Populists developed a following in the South, among poor white people who resented the Democratic Party establishment. Populists formed alliances with Republicans (including black Republicans) and challenged the Democratic bosses, even defeating them in some cases. To prevent such coalitions in the future and to end the violence associated with suppressing the black vote during elections, Southern Democrats acted to disfranchise both black people and poor white people. From 1890 to 1910, beginning with Mississippi, Southern states adopted new constitutions and other laws including various devices to restrict voter registration, disfranchising virtually all black and many poor white residents. These devices applied to all citizens; in practice they disfranchised most black citizens and also "would remove [from voter registration rolls] the less educated, less organized, more impoverished whites as well – and that would ensure one-party Democratic rules through most of the 20th century in the South". All the Southern states adopted provisions that restricted voter registration and suffrage, including new requirements for poll taxes, longer residency, and subjective literacy tests. Some also used the device of grandfather clauses, exempting voters who had a grandfather voting by a particular year (usually before the Civil War, when black people could not vote.) White Democrats also opposed Republican economic policies such as the high tariff and the gold standard, both of which were seen as benefiting Northern industrial interests at the expense of the agrarian South in the 19th century. Nevertheless, holding all political power was at the heart of their resistance. From 1876 through 1944, the national Democratic party opposed any calls for civil rights for black people. In Congress Southern Democrats blocked such efforts whenever Republicans targeted the issue. White Democrats passed "Jim Crow" laws which reinforced white supremacy through racial segregation. The Fourteenth Amendment provided for apportionment of representation in Congress to be reduced if a state disenfranchised part of its population. However, this clause was never applied to Southern states that disenfranchised black residents. No black candidate was elected to any office in the South for decades after the turn of the century; and they were also excluded from juries and other participation in civil life. Democratic candidates won by large margins in a majority of Southern states in every presidential election from 1876 to 1948, except for