Speaking on CBS' Face the Nation, Sen. Chris Coons (D-DE) called Israeli Prime Minister Netanyahu "an exceptionally difficult partner." Coons reached this conclusion after hearing Bibi comment that he was "proud" of his work to block the formation of an adjacent Palestinian nation.
Since all possible Palestinian nations have as a central goal the destruction of Israel, Netanyahu is justifiably proud of interfering with the establishment of an enemy state. Whether he was wise to describe his feelings in this unfiltered fashion is another question.
Leaders of governments actively at war with violent enemies - as Israel currently is - tend to speak bluntly. Plus given the intricacies of Israel parliamentary politics and the extreme factionalism of his famously argumentative people, Netanyahu has had to find his allies where he could.
Lately those allies are mostly on the extreme right. He has to cater to them sufficiently to maintain a governing majority in the Knesset.
If Coons has found Netanyahu difficult to work with, imagine how difficult it has been for Netanyahu to survive this long in Israeli politics.
