DACA wasn't such a promise either, it was just deferred enforcement. That was why DACA was such a cynical and overreaching maneuver - once you have 800,000 illegal immigrants voluntarily give their information to the government in return for temporary relief from enforcement action, it basically becomes unconscionable to use the same list to deport them, which forces Congress to legalize them.
^^^
This is what always bothered me the most about the policy- that it was essentially executive granted amnesty.
Which, whether one agrees with the policy or not, it was a pretty smart tactical move by Obama. Ironically, a GOP led Congress may end up granting amnesty, which is pretty remarkable. I don't know if they have the balls to actually let DACA lapse. Maybe the GOP gets something in exchange, but with how feckless the GOP congress is, I sorta doubt that will happen.
Come to think of it, as much as Dems whine and moan in histrionic fashion about how Trump is the OMG WORST president EVAR!!!!!1! and we're on the precipice of the Holocaust and any minute now we should expect the Four Horsemen to come descending from the sky....
....meanwhile, back in reality, liberals are actually kinda
winning. They certainly are doing a better job than the GOP of advancing their policy goals, even if incrementally. What has the GOP accomplished so far in this administration? Substantively speaking, nothing really, except Gorsuch (which isn't much of an accomplishment, since it just sustains the existing balance on the Court).
Other than that, all the GOP has done is waste the better part of a year, flailing about, attempting to repeal a policy that they neither had an alternative to, nor any real desire to repeal.. which became shockingly transparent, if it wasn't already pre-inauguration.
Otherwise, just a whole lot of nothing.
Real apocalyptic, let me tell ya.