Over the years, hundreds of discriminatory voting changes have been blocked by Section 5, including attempts to cancel elections in the face of growing minority voting strength, efforts to draw black candidates out of their districts, discriminatory redistricting plans and other naked attempts to turn the clock back on the progress that has been made. Section 5, widely regarded as the heart of the Act, is the central issue in all 3 of these suits. But civil rights organizations, such as the NAACP Legal Defense Fund and others, are poised to defend the Act to ensure that its strong provisions remain in place.