After the Reconstruction Era came to an end in 1877, however, the former slave states subverted the objective of these changes by using various strategies to disenfranchise their black citizens, while obtaining the benefit of apportionment of representatives on the basis of the total populations.
These measures effectively gave white Southerners even greater voting power than they had in the antebellum era, inflating the number of Southern Democrats in the House of Representatives as well as the number of votes they could exercise in the Electoral College in the election of the president.
The disenfranchisement of black citizens eventually attracted the attention of Congress, and in 1900 some members proposed stripping the South of seats, related to the number of people who were barred from voting.[20] In the end, Congress did not act to change apportionment, largely because of the power of the Southern bloc. The Southern bloc comprised Southern Democrats voted into office by white voters and constituted a powerful voting bloc in Congress until the 1960s.
Their representatives, re-elected repeatedly by one-party states, controlled numerous chairmanships of important committees in both houses on the basis of seniority, giving them control over rules, budgets and important patronage projects, among other issues. Their power allowed them to defeat federal legislation against racial violence and abuses in the South. [21][not in citation given]