The mountains of Judea are first named in the Book of Joshua, in the account of the conquering of Canaan by the Israelites during the creation of the Land of Israel. From that time to the present, more than 3,000 years, the name Judea has been consistently used to describe the territory from Jerusalem south along the Judean mountain ridge line, extending east from the mountains down to the Dead Sea.
The hill country north and west of Jerusalem has been known as Samaria since the days of King Jeroboam, first king of the breakaway ten northern tribes of Israel after the death of King Solomon.
Judea and Samaria have been known by these names for unbroken centuries, and were registered as such on official documents and maps, by international institutions and in authoritative reference books right up to about 1950. When the correct names became a problem for Palestinian Arabs trying to make their newly-minted claim on the land, it somehow became "politically correct" to use "West Bank" or "occupied territories" instead of the historically accurate names Judea and Samaria.
http://www.palestinefacts.org/pf_early_palestine_judea_samaria.php
He's not going to be the one negotiating. We're years away from even getting to a table. 
