@engineer,
No he hasn't but he lived up to the biblical prophecy;
Daniel 9:27.
Then he shall confirm a covenant with many for one week;
But in the middle of the week He shall bring an end to sacrifice and offering.
And on the wing of abominations shall be one who makes desolate,
Even until the consummation, which is determined, is poured out on the desolate.”
The nobel peace prize was a peace covenant because it was based off of his promises and efforts to create peace for the future.
The week is 7 years, or the 7 years after he gets the nobel peace prize (the rest of his presidency).
Midweek is 3.5 years, because its half the week and half of 7 is 3.5. Remember, a day is as a year.
3.5 years from 2009, he stopped sacrifices and stood in the holy place as it said.
In 2014, people got arrested for trying to sacrifice again.
http://www.timesofisrael.com/five-arrested-for-planning-passover-sacrifice-on-temple-mount/