Complex sentence: Although the bill passed the House of Representatives in 1922, it was defeated in the Senate due to a filibuster in 1922 and later years by the white Southern Democratic block, which exerted one-party rule into the 1960s throughout most of the South.
Split into simpler sentences: Although the bill passed the House of Representatives in 1922, it was defeated in the Senate due to a filibuster in 1922 and later years by the white Southern Democratic block. The Democrats exerted one-party rule into the 1960s throughout most of the South.