[The Bat Lady]

It failed because President Reagan trusted the democrats to do their part to tighten up security at the border and as usual they lied.

[Lurkinanloomin]

It was George HW Bush’s responsibility to implement the enforcement measures and he never did.

The treason was bipartisan.

[Will88]

It failed because President Reagan trusted the democrats to do their part to tighten up security at the border and as usual they lied.

And equally because President Reagan was succeeded by GHWB, who was the president who began the practice of mostly non-enforcement after the 1986 'comprehensive reform' of immigration.