I don't know, i'm no politician; i'm just waiting on the 2008 Obama campaign promise to close Guantanamo Bay (to clarify: I mean cease black operations at that site indefinitely -- I don't have any illusions that the U.S. will stop illegal black operations internationally.).
I don't know whether or not if it's an impossibility at this point to do so; but I also believe if it is impossible it probably shouldn't have been a campaign promise used to influence voters.
http://www.newyorker.com/magazine/2016/08/01/why-obama-has-f...
Impossibility can mean a couple of things - the logistical challenges of where Guantanamo prisoners should go, and the impossibility of getting it done in a Republican-controlled senate and house.
The first is in line with your point, although I think it's a reasonable assumption that Obama honestly underestimated the challenge. For the second, it's not reasonable to call it a broken promise if he made a good faith effort and was blocked by something out of his control (that he couldn't have necessarily predicted)
Fortunately, the Republican's also lack a super majority in the Senate this time around.
Sorry, that is simply not true. Obamacare was passed without a single amendment (or even a full debate), and without a single Republican vote.
https://en.wikipedia.org/wiki/Patient_Protection_and_Afforda...
But my statement about the supermajority is true. The Democrats (with Independents) had at most 60 members of the Senate (2009-2010), Republicans had from 39-42 (vacancies and other things going on).
Democrats did not have sufficient control of the Senate to guarantee they could get whatever they wanted.
I recall one of the Republicans predicting that at some future time the Democrats were going to regret having used the nuclear option. That time is probably about right now.
I'm afraid there's no way to put that big cloud back into that shiny metal ball.
Democrats in the Senate used this super-majority to pass the ACA (Obamacare) in December 2009. Technically, they used the super-majority to end the filibuster and then voted on the bill.
Unfortunately, the Democrats have already gone nuclear repeatedly.
What makes you think the Republicans won't do the same?
Edit: typo.
EDIT: Ah, rules changes on filibuster and such. There's no guarantee. The Republicans do only have 51 members, though, with 48 for the Democrats and (per CNN's results) 1 seat still being tallied (?).
They could change the filibuster rules and make it easier on themselves, but it's a much narrower margin than in 2009.
EDIT 2: Regarding the empty seat, that's LA. If people vote in the runoff (not still being tallied) by the same party lines, it'll likely go to the remaining Republican candidate. So it'll be 52/48. Rule changes will need Democrats on board with them, this is unlikely.
There's a reason it was called the "nuclear option".
http://cjonline.com/blog-post/lucinda/2012-06-01/no-obama-di...
The only "myth" there is pretending that it requires a filibuster-proof majority to pass any legislation.
https://en.wikipedia.org/wiki/Nuclear_option
They could have done that on day one.