Some of the Democratic presidential candidates have criticized the tough-on-crime legislation enacted during the 1980s and 1990s, arguing that it contributed to the mass incarceration that shames the country today. The candidates and other critics have focused on the 1994 crime bill, which provided incentives for states to build more prisons and impose longer sentences, and the 1986 Anti-Drug Abuse Act, which established harsh sentences for drug offenses, particularly those involving crack cocaine.