In Nixon's first term in office he, along with many in his administration for various reasons ranging from political gain to a genuine urge to fight poverty proposed a series of reforms to the National Welfare system that would have completely re-organized them more then any moment since FDR had enacted Social Security. CHIP has been discussed on site before, but I'm more interested in what humorously was called FAP.
The Family Assistance Program was a complete reconstruction of the Welfare system, it would have replaced Social Security, Aid to Families with Dependent Children, Unemployment Insurance and other programs with a National Guaranteed Income (That is, a National Minimal Wadge). To be given by the government to those whom generally received government aid already, and interestingly enough the Working Poor. The government would also subsidize career training and job education for those who were enrolled in the program, exemptions from that program would be reserved for the elderly and single mothers with children not yet in school.
FAP faced opposition of course from enough corners that Nixon eventually dropped it as a negative campaign issue. Unions feared for its impact on minimum wages, Democrats opposed its destruction of a lot of Great Society programs, Goldwater-Reagan conservatives opposed it obviously, and of course the various cogs of the welfare system saw it as an attempt to destroy their bureaucratic power and jobs.
The first question I guess should be how does it pass, then can the system survive Conservative Backlash and Democratic Opposition? Lastly if it can pass, and isn't destroyed in its first few years, would it be effective?